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- [1] SOME EMBEDDINGS OF 2-SPHERES IN 4-MANIFOLDS PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, 1964, 60 (02): : 354 - &
- [4] LOCAL KNOTS OF 2-SPHERES IN 4-MANIFOLDS PROCEEDINGS OF THE JAPAN ACADEMY, 1969, 45 (01): : 34 - &
- [7] EMBEDDING 2-SPHERES TOPOLOGICALLY IN SMOOTH 4-MANIFOLDS HOUSTON JOURNAL OF MATHEMATICS, 1983, 9 (01): : 119 - 124