Hindman, N.. "Sums equal to products in ßN.." Semigroup forum 21 (1980): 221-256. <http://eudml.org/doc/134450>.
@article{Hindman1980, author = {Hindman, N.}, journal = {Semigroup forum}, keywords = {left-continuous multiplication; Stone-Cech compactification; ideals}, pages = {221-256}, title = {Sums equal to products in ßN.}, url = {http://eudml.org/doc/134450}, volume = {21}, year = {1980}, }
TY - JOUR AU - Hindman, N. TI - Sums equal to products in ßN. JO - Semigroup forum PY - 1980 VL - 21 SP - 221 EP - 256 KW - left-continuous multiplication; Stone-Cech compactification; ideals UR - http://eudml.org/doc/134450 ER -