G. Terry Ross, Richard M. Soland. A branch and bound algorithm for the generalized assignment problem. Math. Program., 8(1):91-103, 1975. [doi]
@article{RossS75,
title = {A branch and bound algorithm for the generalized assignment problem},
author = {G. Terry Ross and Richard M. Soland},
year = {1975},
doi = {10.1007/BF01580430},
url = {http://dx.doi.org/10.1007/BF01580430},
researchr = {https://researchr.org/publication/RossS75},
cites = {0},
citedby = {0},
journal = {Math. Program.},
volume = {8},
number = {1},
pages = {91-103},
}