Sergei Chubanov, Erwin Pesch. Recursive functions on the plane and FPTASs for production planning and scheduling problems with two facilities. Math. Meth. of OR, 70(2):313-335, 2009. [doi]
@article{ChubanovP09,
title = {Recursive functions on the plane and FPTASs for production planning and scheduling problems with two facilities},
author = {Sergei Chubanov and Erwin Pesch},
year = {2009},
doi = {10.1007/s00186-008-0270-5},
url = {http://dx.doi.org/10.1007/s00186-008-0270-5},
researchr = {https://researchr.org/publication/ChubanovP09},
cites = {0},
citedby = {0},
journal = {Math. Meth. of OR},
volume = {70},
number = {2},
pages = {313-335},
}