@article{Knepper1985,
  author    = {Knepper, Ludger},
  title     = {Der moderne Luftfrachtverkehr - leistungsfaehig durch seine bodengebundenen Umschlagssysteme},
  pages     = {60 -- 69},
  year      = {1985},
  language  = {de}
}
@incollection{Reichert2014,
  author    = {Reichert, Walter},
  title     = {Der Vertriebsingenieur: Ausbildung und Beruf},
  series = {Berufsstart Technik : das Karriereportal f{\"u}r junge Akademiker ; Ingenieure, Naturwissenschaftler, Informatiker},
  booktitle = {Berufsstart Technik : das Karriereportal f{\"u}r junge Akademiker ; Ingenieure, Naturwissenschaftler, Informatiker},
  publisher = {Resch},
  address   = {Großenkneten},
  pages     = {456 -- 458},
  year      = {2014},
  language  = {de}
}
@article{Grundmann1992,
  author    = {Grundmann, Reinhard},
  title     = {Design Criteria for Aeroacoustic Wind Tunnels},
  year      = {1992},
  language  = {en}
}
@article{FrankoDuKallweitetal.2020,
  author    = {Franko, Josef and Du, Shengzhi and Kallweit, Stephan and Duelberg, Enno Sebastian and Engemann, Heiko},
  title     = {Design of a Multi-Robot System for Wind Turbine Maintenance},
  series = {Energies},
  volume    = {13},
  journal   = {Energies},
  number    = {10},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {1996-1073},
  doi       = {10.3390/en13102552},
  pages     = {Article 2552},
  year      = {2020},
  abstract  = {The maintenance of wind turbines is of growing importance considering the transition to renewable energy. This paper presents a multi-robot-approach for automated wind turbine maintenance including a novel climbing robot. Currently, wind turbine maintenance remains a manual task, which is monotonous, dangerous, and also physically demanding due to the large scale of wind turbines. Technical climbers are required to work at significant heights, even in bad weather conditions. Furthermore, a skilled labor force with sufficient knowledge in repairing fiber composite material is rare. Autonomous mobile systems enable the digitization of the maintenance process. They can be designed for weather-independent operations. This work contributes to the development and experimental validation of a maintenance system consisting of multiple robotic platforms for a variety of tasks, such as wind turbine tower and rotor blade service. In this work, multicopters with vision and LiDAR sensors for global inspection are used to guide slower climbing robots. Light-weight magnetic climbers with surface contact were used to analyze structure parts with non-destructive inspection methods and to locally repair smaller defects. Localization was enabled by adapting odometry for conical-shaped surfaces considering additional navigation sensors. Magnets were suitable for steel towers to clamp onto the surface. A friction-based climbing ring robot (SMART— Scanning, Monitoring, Analyzing, Repair and Transportation) completed the set-up for higher payload. The maintenance period could be extended by using weather-proofed maintenance robots. The multi-robot-system was running the Robot Operating System (ROS). Additionally, first steps towards machine learning would enable maintenance staff to use pattern classification for fault diagnosis in order to operate safely from the ground in the future.},
  language  = {en}
}
@book{Pfeiffer1997,
  author    = {Pfeiffer, Johann},
  title     = {Design und Herstellen von Werkzeugen mit Freiformfl{\"a}chen},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {1997},
  language  = {de}
}
@inproceedings{HartmannKallweitFeldusenetal.2012,
  author    = {Hartmann, Axel and Kallweit, Stephan and Feldusen, Antje and Schr{\"o}der, Wolfgang},
  title     = {Detection of upstream propagating sound waves at buffet flow using high-speed PIV},
  pages     = {14 S. : graph. Darst.},
  year      = {2012},
  language  = {en}
}
@inproceedings{SchleupenEngemannBagherietal.2017,
  author    = {Schleupen, Josef and Engemann, Heiko and Bagheri, Mohsen and Kallweit, Stephan and Dahmann, Peter},
  title     = {Developing a climbing maintenance robot for tower and rotor blade service of wind turbines},
  series = {Advances in Robot Design and Intelligent Control : Proceedings of the 25th Conference on Robotics in Alpe-Adria-Danube Region (RAAD16)},
  booktitle = {Advances in Robot Design and Intelligent Control : Proceedings of the 25th Conference on Robotics in Alpe-Adria-Danube Region (RAAD16)},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-49058-8},
  doi       = {10.1007/978-3-319-49058-8_34},
  pages     = {310 -- 319},
  year      = {2017},
  language  = {en}
}
@inproceedings{VedralKruseWollert2007,
  author    = {Vedral, Andreas and Kruse, Thomas and Wollert, J{\"o}rg},
  title     = {Development and performance evaluation of an antenna diversity module for industrial communication based on IEEE 802.15.4},
  series = {12th IEEE International Conference on Emerging Technologies and Factory Automation : ETFA 2007 : proceedings : 25-28 Sept. 2007, Patras, Greece},
  booktitle = {12th IEEE International Conference on Emerging Technologies and Factory Automation : ETFA 2007 : proceedings : 25-28 Sept. 2007, Patras, Greece},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  organization    = {International Conference on Emerging Technologies and Factory Automation <12, 2007, Patras, Greece>},
  isbn      = {1424408261 ; 9781424408269},
  doi       = {10.1109/EFTA.2007.4416769},
  pages     = {177 -- 186},
  year      = {2007},
  language  = {en}
}
@article{EnningJenayehMuelleretal.1997,
  author    = {Enning, Manfred and Jenayeh, I. and M{\"u}ller, C. and Rake, Heinrich},
  title     = {Development and realization of a manipulator for automatic decoupling of freight cars in marshalling yards / Jenayeh, I. ; M{\"u}ller, C. ; Enning, Manfred ; Rake, Heinrich ; Peter, J.},
  year      = {1997},
  language  = {en}
}
@article{StarkeDrews1985,
  author    = {Starke, G{\"u}nther and Drews, P.},
  title     = {Development approaches for advanced control in automated arc welding},
  pages     = {115 -- 124},
  year      = {1985},
  language  = {en}
}