Two direct methods for reconstructing pictures from their projections

Gabor T. Herman
1971 Proceedings of the November 16-18, 1971, fall joint computer conference on - AFIPS '71 (Fall)  
doi:10.1145/1478873.1479004 dblp:conf/afips/Herman72 fatcat:pucitimfr5btzn6tyiez6hx27e