Authors: IVANTER EV MEDVEDEV NV PANICHEV NA

Citation: Ev. Ivanter et al., HEAVY-METAL CONTENT IN THE LADOGA RINGED SEAL, PHOCA-HISPIDA LADOGIENSIS, Russian journal of ecology, 29(2), 1998, pp. 98-102

Authors: SIPILA T MEDVEDEV NV HYVARINEN H

Citation: T. Sipila et al., THE LADOGA SEAL (PHOCA-HISPIDA LADOGENSIS NORDQ), Hydrobiologia, 322(1-3), 1996, pp. 193-198