Joint Products and On-the-Job Training A. G. Holtmann Journal of Political Economy 1971 79(4), 929-931
Spillover of Public Costs and Benefits. Werner Z. Hirsch , Elbert W. Segelhorst , Morton Marcus A. G. Holtmann Journal of Political Economy 1967 75(3), 310-311
A Note on Public Education and Spillovers through Migration A. G. Holtmann Journal of Political Economy 1966 74(5), 524-525
Burial Costs and Premature Death A. G. Holtmann; R. Ridker Journal of Political Economy 1965 73(3), 284-286