TY - BOOK ID - 138002154 TI - Eraly Tertiary field reversals recorded in volcanic ash layers of Northern Denmark PY - 1970 PB - Kobenhavn Bianco Lunos Bogtrykkeri DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:138002154 AB - ER -