@workingPaper{AhujaMehlhornOrlinTarjan_1988,
title={Faster algorithms for the shortest path problem},
author={Ahuja, Ravindra K. and Mehlhorn, Kurt and Orlin, James B. and Tarjan, Robert E.},
doi={http://dx.doi.org/10.22028/D291-26129},
year={1988}
}