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- [32] ABSTRACTS OF PAPERS PRESENTED AT THE 4TH INTERNATIONAL-SYMPOSIUM ON PREVENTION AND DETECTION OF CANCER, LONDON, 26-31 JULY 1980 CANCER DETECTION AND PREVENTION, 1980, 3 (01): : 1 - 274
- [35] ABSTRACTS OF PAPERS PRESENTED AT THE 4TH MEETING OF THE SARDINIAN GROUP OF THE ITALIAN-BIOCHEMICAL-SOCIETY, JUNE 13-14, 1991 - THE MEETING WAS HELD IN CAGLIARI ITALIAN JOURNAL OF BIOCHEMISTRY, 1992, 41 (02): : A77 - A122
- [37] 4TH INTERNATIONAL-SYMPOSIUM ON MACROMOLECULE-METAL COMPLEXES HELD IN SIENA, ITALY - 30 SEPTEMBER 5 OCTOBER 1991 - PREFACE MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, 1992, 59 : R11 - R11
- [39] ECONOMIC-INTEGRATION WORLDWIDE, REGIONAL, SECTORAL (PROCEEDINGS OF 4TH CONGRESS OF INTERNATIONAL ECONOMIC ASSOCIATION HELD IN BUDAPEST, HUNGARY) - MACHLUP,F MANCHESTER SCHOOL OF ECONOMIC AND SOCIAL STUDIES, 1977, 45 (03): : 316 - 317
- [40] 4TH CONGRESS OF THE INTERNATIONAL-ASSOCIATION-FOR-ANIMAL-HYGIENE HELD SEPTEMBER 20-25 1982 IN STRBSKE-PLESO (CSSR) BERLINER UND MUNCHENER TIERARZTLICHE WOCHENSCHRIFT, 1983, 96 (02): : 66 - 66