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@article{MOMA_1968__72_177406, author = {William D.L. Appling}, title = {An {Extended} {Notion} of {Refinement-Unboundedness.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {9--17}, publisher = {mathdoc}, volume = {72}, year = {1968}, zbl = {0195.34202}, url = {http://geodesic.mathdoc.fr/item/MOMA_1968__72_177406/} }
William D.L. Appling. An Extended Notion of Refinement-Unboundedness.. Monatshefte für Mathematik, Tome 72 (1968), pp. 9-17. http://geodesic.mathdoc.fr/item/MOMA_1968__72_177406/