@article{Timme2003,
  author    = {Timme, Michael},
  title     = {Aktuelle Entwicklungen zur Zul{\"a}ssigkeit der B{\"u}rgschaft auf erstes Anfordern},
  series = {Monatsschrift f{\"u}r deutsches Recht : MDR. 23 (2003), H. 19},
  journal   = {Monatsschrift f{\"u}r deutsches Recht : MDR. 23 (2003), H. 19},
  isbn      = {0340-1812},
  pages     = {1094 -- 1097},
  year      = {2003},
  language  = {de}
}
@article{BaumannPeschel1998,
  author    = {Baumann, Marcus and Peschel, G.},
  title     = {Aktuelle Entwicklungen zur Luftreinhaltung in der Stadt Aachen},
  series = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  volume    = {20},
  journal   = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  number    = {91},
  issn      = {0172-1623},
  pages     = {22 -- 29},
  year      = {1998},
  language  = {de}
}
@article{Heger1994,
  author    = {Heger, Michael},
  title     = {Aktuelle Einsch{\"a}tzungen zur Evaluation universit{\"a}rer Lehre},
  series = {Feedback versus Evaluation. Bd. 3 : Gesetzliche Verankerung und Modellvorschl{\"a}ge zur Weiterentwicklung},
  journal   = {Feedback versus Evaluation. Bd. 3 : Gesetzliche Verankerung und Modellvorschl{\"a}ge zur Weiterentwicklung},
  publisher = {{\"O}sterreichischer Studien-Verl.},
  address   = {Innsbruck},
  pages     = {384 -- 387},
  year      = {1994},
  language  = {de}
}
@article{Meliss1997,
  author    = {Meliß, Michael},
  title     = {Aktuelle Aspekte der Windkraftnutzung},
  series = {Energiewirtschaftliche Tagesfragen. Jg. 47 (1997), H. 9},
  journal   = {Energiewirtschaftliche Tagesfragen. Jg. 47 (1997), H. 9},
  issn      = {0013-743X},
  pages     = {531 -- 532},
  year      = {1997},
  language  = {de}
}
@article{Wessling2008,
  author    = {Weßling, Matthias},
  title     = {Aktives Nachfolger-Coaching f{\"u}r den Mittelstand setzt fr{\"u}h an. Innovative Idee f{\"u}r Studierende der FH Aachen},
  series = {Wirtschaftliche Nachrichten der Industrie- und Handelskammer Aachen / IHK (2008)},
  journal   = {Wirtschaftliche Nachrichten der Industrie- und Handelskammer Aachen / IHK (2008)},
  pages     = {12 -- 13},
  year      = {2008},
  language  = {de}
}
@article{DoeringKuhnhenneHellbergetal.2008,
  author    = {D{\"o}ring, Bernd and Kuhnhenne, Markus and Hellberg, Jan and Feldmann, Markus},
  title     = {Aktive und passive Temperierung eines Stahldeckensystems : thermische Bauteilaktivierung : numerische und messtechnische Untersuchungen. T. 2.},
  series = {HLH L{\"u}ftung/Klima, Heizung/Sanit{\"a}r, Geb{\"a}udetechnik},
  volume    = {Bd. 59},
  journal   = {HLH L{\"u}ftung/Klima, Heizung/Sanit{\"a}r, Geb{\"a}udetechnik},
  number    = {H. 11},
  issn      = {1436-5103},
  pages     = {37 -- 41},
  year      = {2008},
  language  = {de}
}
@article{DoeringKuhnhenneHellbergetal.2008,
  author    = {D{\"o}ring, Bernd and Kuhnhenne, Markus and Hellberg, Jan and Feldmann, Markus},
  title     = {Aktive und passive Temperierung eines Stahldeckensystems : numerische und messtechnische Untersuchungen. T. 1},
  series = {HLH : L{\"u}ftung, Klima, Heizung, Sanit{\"a}r, Geb{\"a}udetechnik},
  volume    = {Bd. 59},
  journal   = {HLH : L{\"u}ftung, Klima, Heizung, Sanit{\"a}r, Geb{\"a}udetechnik},
  number    = {H. 10},
  issn      = {1436-5103, 0017-9906, 1434-422X, 1436-5103},
  pages     = {54 -- 60},
  year      = {2008},
  language  = {de}
}
@article{Gligorevic2013,
  author    = {Gligorevic, Snjezana},
  title     = {Airport surface propagation channel in the C-Band: measurements and modeling},
  series = {IEEE transactions on antennas and propagation},
  volume    = {Vol. 61},
  journal   = {IEEE transactions on antennas and propagation},
  number    = {Iss. 9},
  publisher = {IEEE},
  address   = {New York},
  issn      = {0018-926x},
  pages     = {4792 -- 4802},
  year      = {2013},
  language  = {en}
}
@article{GoettenHavermannBraunetal.2020,
  author    = {G{\"o}tten, Falk and Havermann, Marc and Braun, Carsten and Marino, Matthew and Bil, Cees},
  title     = {Airfoil drag at low-to-medium reynolds numbers: A novel estimation method},
  series = {AIAA Journal},
  volume    = {58},
  journal   = {AIAA Journal},
  number    = {7},
  publisher = {AIAA},
  address   = {Reston, Va.},
  issn      = {1533-385X},
  doi       = {10.2514/1.J058983},
  pages     = {2791 -- 2805},
  year      = {2020},
  abstract  = {This paper presents a novel method for airfoil drag estimation at Reynolds numbers between 4×10⁵ and 4×10⁶. The novel method is based on a systematic study of 40 airfoils applying over 600 numerical simulations and considering natural transition. The influence of the airfoil thickness-to-chord ratio, camber, and freestream Reynolds number on both friction and pressure drag is analyzed in detail. Natural transition significantly affects drag characteristics and leads to distinct drag minima for different Reynolds numbers and thickness-to-chord ratios. The results of the systematic study are used to develop empirical correlations that can accurately predict an airfoil drag at low-lift conditions. The new approach estimates a transition location based on airfoil thickness-to-chord ratio, camber, and Reynolds number. It uses the transition location in a mixed laminar-turbulent skin-friction calculation, and corrects the skin-friction coefficient for separation effects. Pressure drag is estimated separately based on correlations of thickness-to-chord ratio, camber, and Reynolds number. The novel method shows excellent accuracy when compared with wind-tunnel measurements of multiple airfoils. It is easily integrable into existing aircraft design environments and is highly beneficial in the conceptual design stage.},
  language  = {en}
}
@article{GronsfeldSparlaWeinnhold2010,
  author    = {Gronsfeld, Richard and Sparla, Peter and Weinnhold, Wolfgang},
  title     = {Airborne und terrestrisches Laserscanning - neue Tools f{\"u}r den Talsperrenbetreiber?},
  series = {Wasserwirtschaft},
  volume    = {100},
  journal   = {Wasserwirtschaft},
  number    = {4},
  isbn      = {0043-0978},
  pages     = {80 -- 82},
  year      = {2010},
  language  = {de}
}