TY  - JOUR
AU  - Saharon Shelah
AU  - Juris Steprāns
TI  - Possible cardinalities of maximal
abelian subgroups of quotients of permutation groups of the integers
JO  - Fundamenta Mathematicae
PY  - 2007
SP  - 197
EP  - 235
VL  - 196
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm196-3-1/
DO  - 10.4064/fm196-3-1
LA  - en
ID  - 10_4064_fm196_3_1
ER  -