TY - BOOK ID - 133386533 TI - Linear aggregation of economic relations PY - 1954 VL - 7. PB - Amsterdam : North-Holland Pub. Co., DB - UniCat KW - Set theory KW - Statistics KW - TheĢorie des ensembles KW - Statistique UR - https://www.unicat.be/uniCat?func=search&query=sysid:133386533 AB - ER -