[DEVIATIONS IN THE INVASION INTENSITY OF HOSTS OF A CERTAIN FISH POPULATION].
D000818:Animals; D003604:Czechoslovakia; D005399:Fishes; D014201:Trematode Infections
CZECHOSLOVAKIA; FISHES; TREMATODE INFECTIONS
ODCHYLKY V INTENZIT E INVAZ'I U HOSTITELU JEDN'E POPULACE RYB.