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References from On relations between the classes $${\mathcal {S}}$$ S and $${\mathcal {U}}$$ U. Local targets link to admitted publications; unresolved targets remain external evidence.
Unresolved reference
1958 · External reference
10.1307/mmj/1029000740
10.1307/mmj/1029000740 · 1971 · External reference
10.1016/0022-247x(78)90181-6
10.1016/0022-247x(78)90181-6 · 1978 · External reference
10.1201/9781482289817
10.1201/9781482289817 · 2000 · External reference
10.1002/mana.19951750114
10.1002/mana.19951750114 · 1995 · External reference
Unresolved reference
2005 · External reference
10.1134/s0037446611020121
10.1134/s0037446611020121 · 2011 · External reference
10.1007/s40840-015-0263-5
10.1007/s40840-015-0263-5 · External reference
Unresolved reference
1975 · External reference
Unresolved reference
1985 · External reference
Unresolved reference
1989 · External reference
