1. Warsaw-Dubna-Yerevan-Leningrad-Tashkent collaboration, JINR preprint Rl-6877, Dubna (1972);
2. Nucl. Phys. A208, 626 (1972)
3. Warsaw-Dubna-Gatchina-Kosice-Leningrad-Moscow-Tashkent collaboration, JINR preprint R1-8313, Dubna (1974);
4. Yadernaya Fizika25, 777 (1977)
5. Alma-Ata-Leningrad-Moscow-Tashkent collaboration, Lebedev Institute preprint N 9, Moscow (1974)