TY - BOOK ID - 146223796 TI - Re-examinaton of some Rb-Sr and K.Ar age determination of cretaceous and tertiary deposits in Belgium and the adjacent countries AU - KEPPENS, Eddy AU - PASTEELS, Paul PY - 1981 PB - Bruxelles : F. Hayez, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:146223796 AB - ER -