On the theory of non-linear operator equations on conjugately similar spaces S. Yamamuro — 1960 Studia Mathematica
Notes on differential calculus in topological liear spaces. S. Yamamuro; John Grunau — 1976 Journal für die reine und angewandte Mathematik
Union and symmetry preserving homomorphisms of semigroups of closed relations. K.D. jr. Magill; S. Yamamuro — 1971 Semigroup forum