A. M. Cormack, Eric Todd Quinto. On a problem in radiotherapy: Questions of non-negativity. Int. J. Imaging Systems and Technology, 1(2):120-124, 1989. [doi]
@article{CormackQ89,
title = {On a problem in radiotherapy: Questions of non-negativity},
author = {A. M. Cormack and Eric Todd Quinto},
year = {1989},
doi = {10.1002/ima.1850010203},
url = {http://dx.doi.org/10.1002/ima.1850010203},
researchr = {https://researchr.org/publication/CormackQ89},
cites = {0},
citedby = {0},
journal = {Int. J. Imaging Systems and Technology},
volume = {1},
number = {2},
pages = {120-124},
}