@article{LaackOhnsorge1987,
  author    = {Laack, Walter van and Ohnsorge, J.},
  title     = {Technik und Ergebnisse der arthroskopischen Fixation von Dissekaten an der medialen Femurrolle mit resorbierbaren EthipinR-Stiften},
  series = {Abstracts : SICOT 87, XVII. world congress, Munich, 16 - 21 August 1987 / [ed.: H. Wagner]},
  journal   = {Abstracts : SICOT 87, XVII. world congress, Munich, 16 - 21 August 1987 / [ed.: H. Wagner]},
  publisher = {Demeter},
  address   = {Gr{\"a}felfing},
  isbn      = {3-921512-85-9},
  pages     = {277},
  year      = {1987},
  language  = {de}
}
@book{Laack2005,
  author    = {Laack, Walter van},
  title     = {Mit Logik die Welt begreifen},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-936624-07-6},
  pages     = {380 S. : Ill., graph. Darst.},
  year      = {2005},
  language  = {de}
}
@book{Laack2003,
  author    = {Laack, Walter van},
  title     = {A better history of our world / Vol. 3. Death},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-936624-01-4},
  pages     = {276 S.},
  year      = {2003},
  language  = {en}
}
@article{LaackRefischOhnsorgeetal.1984,
  author    = {Laack, Walter van and Refisch, A. and Ohnsorge, J. and D{\"u}rselen, L.},
  title     = {Proximaler Femurteilersatz - Alternative zum Schaftwechsel zementfixierter H{\"u}ftendoprothesen},
  series = {Orthop{\"a}dische Praxis. 20 (1984), H. 11},
  journal   = {Orthop{\"a}dische Praxis. 20 (1984), H. 11},
  isbn      = {0030-588x},
  pages     = {856},
  year      = {1984},
  language  = {de}
}
@article{Laack1986,
  author    = {Laack, Walter van},
  title     = {Allgemeine physiotherapeutische Behandlung nach H{\"u}ft- und Kniegelenkoperationen},
  series = {Physiotherapie. 77 (1986), H. 2},
  journal   = {Physiotherapie. 77 (1986), H. 2},
  isbn      = {0031-9392},
  pages     = {68 -- 72},
  year      = {1986},
  language  = {de}
}
@article{KeutmannStaatLaack2018,
  author    = {Keutmann, Sabine and Staat, Manfred and Laack, Walter van},
  title     = {Untersuchung der thermischen Auswirkung von therapeutischem Ultraschall},
  volume    = {7},
  number    = {10},
  publisher = {Deutscher {\"A}rzte-Verl.},
  address   = {K{\"o}ln},
  issn      = {2193-5793},
  pages     = {518 -- 522},
  year      = {2018},
  abstract  = {Zusammenfassung: In der Orthop{\"a}die z{\"a}hlt der therapeutische Ultraschall als Mittel zur Pr{\"a}vention und Therapiebegleitung. Er hat mechanische, thermische und physiko-chemische Auswirkungen auf den menschlichen K{\"o}rper. Um mehr Erkenntnisse {\"u}ber die thermischen Auswirkungen zu erlangen, wurden Versuche an einem Hydrogel-Phantom und an Probanden durchgef{\"u}hrt. Dabei entstand eine signifikante Erw{\"a}rmung des Gewebes, welche beim Probandenversuch an der Oberfl{\"a}che und beim Hydrogelversuch in der Tiefe gemessen wurde. Summary: In orthopaedics, therapeutic ultrasound is a tool of prevention and therapy support. It has mechanical, thermal and physico-chemical effects on the human body. Tests with a hydrogel phantom and with human probands have been performed in order to obtain more knowledge about their thermal effects. Both tests measured temperature increases in cell tissue, on the surface with the human proband test and in depth with the hydrogel phantom test.},
  language  = {de}
}
@book{Laack2022,
  author    = {Laack, Walter van},
  title     = {Schnittstelle Tod: Was lernen wir durch Corona {\"u}ber Leben und Tod?},
  publisher = {van Laack GmbH},
  address   = {Aachen},
  isbn      = {978-3-936624-53-3},
  pages     = {108 Seiten},
  year      = {2022},
  language  = {de}
}
@book{Laack2022,
  author    = {Laack, Walter van},
  title     = {Aufruf zum Nachdenken: Corona und neue Kriege - Wie kann die Menschheit {\"u}berleben?},
  publisher = {van Laack GmbH},
  address   = {Aachen},
  isbn      = {978-3-936624-56-4},
  pages     = {56 Seiten},
  year      = {2022},
  language  = {de}
}
@book{Laack2019,
  author    = {Laack, Walter van},
  title     = {Weltbilder gestern und heute - Was bleibt und wor{\"u}ber lacht man morgen?},
  series = {Vortr{\"a}ge \& Einsichten, Lectures \& Insights},
  journal   = {Vortr{\"a}ge \& Einsichten, Lectures \& Insights},
  number    = {Band 2},
  publisher = {van Laack Buchverlag},
  address   = {Aachen},
  isbn      = {ISBN 978-3936624-44-1},
  pages     = {56 Seiten},
  year      = {2019},
  language  = {de}
}
@article{Laack2013,
  author    = {Laack, Walter van},
  title     = {Our world is well ordered in measurement and number : or why natural constants are as they are},
  series = {American Journal of Humanities and Social Sciences (AHSS)},
  volume    = {1},
  journal   = {American Journal of Humanities and Social Sciences (AHSS)},
  number    = {4},
  issn      = {2329-079X},
  doi       = {10.11634/232907811301390},
  pages     = {219 -- 221},
  year      = {2013},
  abstract  = {All the important natural constants can be logically explained with and derived from the first four ordinal numbers, 1, 2, 3 and 4, its addition to ten and finally the standard values for obviously maximal feasibility Ω and the optimum in our world, the Golden Section (GS), i.e. the number sequences 273 and 618. They both are the first three numbers of irrational results by an arithmetical transformation of simple geometrical relationships by creating multiplicity out of singularity. Both of them show that the infinite is inherent in finiteness and explain in a simple way the smallest deviations and fluctuations between the physical AS-IS state and the obvious spiritual ideal behind: Wherever we look in this world, and especially in important key-positions, we regularly find these sequences. All of the above mentioned numbers so seem to be key players in our world, what can be demonstrated by the derivation of natural constants.},
  language  = {en}
}