You may also wish to search for items by Szabadai.
Only one matching reference was found.
Vilceanu, N.; Schulz, P.; Szabadai, Z., Reaction equilibrium between dialkylphosphites and phosphorous acid with the formation of monoalkylphosphites, Lucr. Conf. Nat. Chem. Anal., 1971, 3, 145-151. [all data]