Shmuel S. Oren, Stephen G. Powell. Optimal Supply of a Depletable Resource with a Backstop Technology: Heal's Theorem Revisited. Operations Research, 33(2):277-292, 1985. [doi]
@article{OrenP85,
title = {Optimal Supply of a Depletable Resource with a Backstop Technology: Heal's Theorem Revisited},
author = {Shmuel S. Oren and Stephen G. Powell},
year = {1985},
doi = {10.1287/opre.33.2.277},
url = {http://dx.doi.org/10.1287/opre.33.2.277},
researchr = {https://researchr.org/publication/OrenP85},
cites = {0},
citedby = {0},
journal = {Operations Research},
volume = {33},
number = {2},
pages = {277-292},
}