NIGERIA 
AJAYI, J.D 
FEDERAL MINISTRY OF 
WORKS & HOUSING 
P.M.B. 12596 
LAGOS 
NIGERIA 
NORWAY 
HOLM, KNUT RAGNAR 
RUNIT-COMPUTING CENTRE 
UNIVERSITY OF TRONDHEIM 
N-7034 TRONDHEIM-NTH 
NORWAY 
JORGENSEN, JENS B. 
NORWEGIAN COMPUTER CENTER 
P.O. BOX 335 BLINDERN 
N-0314 OSLO 
NORWAY 
PEOPLE'S REPUBLIC OF CHINA 
LI DEREN 
DEPARTMENT OF PHOTOGRAMMETRY 
WUHAN TECHNICAL UNIVERSITY 
OF SURVEYING AND MAPPING 
23 LO-YU ROAD 
WUHAN 
PEOPLE'S REPUBLIC OF CHINA 
POLAND 
MADEJSKI, PAWEL 
NAT. GEODESY AND GARTOGRAPHY 
ENTERPRISE 
HENRYKA POBOZNEGO 5 
70-508 SZCZECIN 
POLAND 
ZABICKI, MARIAN 
NAT.GECD.& CARTOGRAPH.ENTERPR. 
2/4 JASNA 
00-950 WARSZAWA 
POLAND 
19 
HADEM, INGOLF 
INSTITUTT FOR GEODESI OG 
FOTOGRAMMETRI 
UNIVERSITY OF TRONDHEIM 
N-7034 TRONDHEIM NTH 
NORWAY 
LAND, JARLE 
SYSSCAN A.S. 
P.O. BOX 433 
N-3601 KONGSBERG 
NORWAY 
MAO KEBIAO 
RESEARCH INSTITUTE OF 
SURVEYING & MAPPING 
7 YONG DIN LU 
BEIJING 
PEOPLE'S REPUBLIC OF CHINA 
SIERKIN, JERZY 
POLSERVICE FOREING TRADE ENT. 
8 CHALUBINSKIEGO 
00-950 WARSZAWA 
POLAND