$a Proceedings of the Summer School in Logic, Leeds, 1967 : NATO Advanced Study Institute, Meeting of the Association for Symbolic Logic / ed. by M. H. Löb. - Berlin, 1968. $b (The Univ. of Leeds Department of Mathematics)
670
$a World directory of mathematicians 1970. - Stockholm, 1970. $b (Löb, Martin Hugo)
999
$a VIRTUA10 x
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