TY - BOOK ID - 135001668 TI - Old and new problems and results in combinatorial number theory AU - Erdös, P. AU - Graham, R. L. PY - 1980 PB - Genève Enseignement mathématique DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:135001668 AB - ER -