TY  - GEN
AU  - Folner, Erling
TI  - A generalization of the general diophantine approximation theorem of Kronecker and the W-almos periodicity and mean value of some sets in a topological abelian group
PY  - 1988///
CY  - Kobenhavns
PB  - Universitet Kobenhavns
N1  - Cartea este multigrafiata; Cuprinde bibliografie
ER  -