//-->
Economics of transporation
Locklin, David Philip, (1966)
Predicting railroad bankruptcies in America
Altman, Edward I., (1973)
The apparent decline in capital-output ratios
Anderson, Paul S., (1961)
An algorithm for the discrete network design problem
Leblanc, Larry J., (1975)
Introduction to operations research models
Cooper, Leon, (1977)
The impact of information systems technology on operations management
LeBlanc, Larry J., (2000)