1. Blaszczyk, M., Mycielski, R., Jaworowska-Deptuch, H. and Brzostek, K. (1980) Effect of Various Sources of Organic Carbon and High Nitrite and Nitrate Concentrations on the Selection of Denitrifying Bacteria - I. Stationary Cultures. Acta. Microbiol. Pol. 29, 397-406.
2. Davies, T. R. and Toerien, D. F. (1971) Population Description of Denitrifying Microbial System. Water Res. 5, 553-564.
3. Ijiri, K. (1995) The First Vertebrate Mating Experiment in Space - A Fish Story. Tokyo, RICUT.
4. Beside this full-colored book, there also exists a video tape of 30 min length ‘A Video Version of The First Vertebrate Mating in Space - A Fish Story’(K. Ijiri, 1997, RICUT. Tokyo, Japan). The book and video tapes are available, without any charge when you request to the author, clearly stating your name and mailing address. His postal address: Dr. Kenichi Ijiri, Radioisotope Center, University of Tokyo, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan; E-mail: ijiri@ric.u-tokyo.ac.jp Fax +81-3-5841-3049.
5. Kojima, Y. (1982) 4. Fishes. In Laboratory biology vol. 1 (ed. Egami, N. and Katsumi, M.) pp. 97-113. Tokyo, Maruzen.