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@article{AUCMP_1989__30_2_a20, author = {P{\l}uciennik, Ryszard}, title = {On non-solid {K\"othe} space of $\Delta_2$ type}, journal = {Acta Universitatis Carolinae. Mathematica et Physica}, pages = {137--142}, publisher = {mathdoc}, volume = {30}, number = {2}, year = {1989}, mrnumber = {1046459}, zbl = {0708.46034}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AUCMP_1989__30_2_a20/} }
Płuciennik, Ryszard. On non-solid Köthe space of $\Delta_2$ type. Acta Universitatis Carolinae. Mathematica et Physica, Tome 30 (1989) no. 2, pp. 137-142. http://geodesic.mathdoc.fr/item/AUCMP_1989__30_2_a20/