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- [3] CHARACTERIZATIONS OF METRIC SPACES BY USE OF THEIR MIDSETS - ONE-SPHERES - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 19 (01): : A198 - &
- [4] PSEUDOCOMPLETE METRIC SPACES - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1971, 18 (06): : 973 - &
- [7] IMMERSIONS OF METRIC SPACES INTO EUCLIDEAN SPACES CANADIAN JOURNAL OF MATHEMATICS, 1965, 17 (06): : 1015 - &