TY  - SER
AU  - Kirpichnikov,V.S.
TI  - Adaptive nature of intrapopulational biochemical polymorphism in fish
KW  - Natural Selection
KW  - Drift
KW  - Heterosis
N1  - Institute of Cytology, Academy of Science, Leningrad 194064, Tikhoretsky Avenue 4, U.S.S.R
ER  -