Sequence spaces and interpolation problems for analytic functions A. Snyder — 1971 Studia Mathematica
Constency and Replaceability for Conull Matrices. M.S. Macphail; S.C. Chang; A. Snyder — 1968 Mathematische Zeitschrift
Distance in graphs Roger C. Entringer; Douglas E. Jackson; D. A. Snyder — 1976 Czechoslovak Mathematical Journal