TY - BOOK AU - Weichel,Hugo TI - Laser beam propagation in the atmosphere T2 - Tutorial texts in optical engineering ; v. TT 3 SN - 9780819404879 AV - QC976 .L36W45 1990 PY - 1990/// CY - Bellingham, Wash., USA PB - SPIE Optical Engineering Press KW - Atmosphere KW - Laser observations KW - Atmospheric physics ER -