TY - BOOK ID - 132507397 TI - Stelkunde en theorie van rekenkunde PY - 1930 PB - Antwerpen Bossaerts DB - UniCat KW - Didactics of mathematics KW - Didactics of secundary education UR - https://www.unicat.be/uniCat?func=search&query=sysid:132507397 AB - ER -