TY - GEN TY - GEN T1 - Current problems of lower vertebrate phylogeny : Proceeding of the Fourth Nobel Symposium held in June 1967 at the Swedish Museum of Natural History (Naturhistoriska riksmuseet) in Stockholm A2 - Ørvig, Tor LA - eng PP - Stockholm ; New York ; London etc. PB - Almqvist & Wiksell : Interscience Publishers YR - 1968 UL - https://kansalliskirjasto.finna.fi/Record/fikka.189901 OP - 539 NO - "Sponsors: The Nobel Foundation [and others]". NO - Held June 12-16, 1967. KW - Evolution : congresses. KW - phylogeny : congresses. KW - Vertebrates : congresses. ER -