01317nam a2200325 i 450099100080086970753620020506123919.0951220s1990 us ||| | eng b10131425-39ule_instLE00637072ExLDip.to Fisicaita52.9.5853.2.4522'.2QB88International Conference on advanced technology optical telescopes IV <1982 ; Tucson, Arizona>461000Advanced technology optical telescopes IV :proceedings of the International Conference held at Tucson, Arizona, March 11-13, 1982 /edited by L. BarrBellingham :SPIE,19902 v. :ill. ;28 cm.SPIE Proceedings ;1236TelescopesBarr, L.SPIE.b1013142517-02-1727-06-02991000800869707536LE006 52.9.57+52.9.58 BARPart 212006000029582le006-E0.00-l- 00000.i1015372x27-06-02LE006 52.9.57+52.9.58 BARPart 112006000029599le006-E0.00-l- 00000.i1015373127-06-02Advanced technology optical telescopes IV186117UNISALENTOle00601-01-95ma -engus 02