Unified spaces and singular sets for mappings of locally compact spaces R. F. Dickamn, Jr. — 1968 Fundamenta Mathematicae
Circularity of graphs and continua: topology Harold Bell; Ezra Brown; R. Dickamn; E. Green — 1981 Fundamenta Mathematicae
Semigroups and clusters of indecomposability R. Dickamn; R. Kelley; Leonard Rubin; P. Swingle — 1964 Fundamenta Mathematicae