TY - JOUR AU - Pollack, Paul TI - Quasi-amicable numbers are rare JO - Journal of integer sequences PY - 2011 VL - 14 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JIS_2011__14_5_a2/ LA - en ID - JIS_2011__14_5_a2 ER -