A Quantum Theoretical Characterization of Uniformly Convex Spaces A. R. Blass; C. V. Stanojevic — 1974 Recherche Coopérative sur Programme n°25
On idempotent elements in certain associative algebras A. R. Blass; L. Falcao; Č. V. Stanojević — 1970 Matematički Vesnik