William Thomas Elwell
W. T. Elwell
Bernhard Welz
Anatoli V. Andreev
Dept.of Environment
Frank Twyman
National Institute for Occupational Safety and Health. Division of Physical Sciences and Engineering.
Robinson, James W.
Asha Varma
Claude Veillon
George Colovos
Kai Paschen
J. C. Van Loon
J. Ramírez-Muñoz
John A. Dean
D. L. Tsalev
Sidney A. Katz
A. V. Andreev
Eugen A. Preoteasa