Oxtoby, J.. "The kernel operation on subsets of a $T_1$-space." Fundamenta Mathematicae 90.3 (1976): 275-284. <http://eudml.org/doc/214907>.
@article{Oxtoby1976, author = {Oxtoby, J.}, journal = {Fundamenta Mathematicae}, language = {eng}, number = {3}, pages = {275-284}, title = {The kernel operation on subsets of a $T_1$-space}, url = {http://eudml.org/doc/214907}, volume = {90}, year = {1976}, }
TY - JOUR AU - Oxtoby, J. TI - The kernel operation on subsets of a $T_1$-space JO - Fundamenta Mathematicae PY - 1976 VL - 90 IS - 3 SP - 275 EP - 284 LA - eng UR - http://eudml.org/doc/214907 ER -