{"source":"book","style":"apa","contributors": [{"function":"author","last":"IUshkevich","first":"A","middle":"P"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Geschichte der Mathematik im Mittelalter,","publisher":"Teubner","city":"Leipzig","year":"1964"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"4051783"}