@article{04203046, title = {The closed neighborhood and filter conditions in solid sequence spaces.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {12}, year = {1989}, pages = {625-632}, doi = {10.1155/S0161171289000773}, zbl = {0728.46008}, language = {en}, url = {http://dml.mathdoc.fr/item/04203046} }
Johnson, P.D.jun. The closed neighborhood and filter conditions in solid sequence spaces.. International Journal of Mathematics and Mathematical Sciences, Tome 12 (1989) pp. 625-632. doi : 10.1155/S0161171289000773. http://gdmltest.u-ga.fr/item/04203046/