V. S. Fain. Alternative approach to the shape from shading problem. Int. J. Imaging Systems and Technology, 4(1):22-27, 1992. [doi]
@article{Fain92,
title = {Alternative approach to the shape from shading problem},
author = {V. S. Fain},
year = {1992},
doi = {10.1002/ima.1850040105},
url = {http://dx.doi.org/10.1002/ima.1850040105},
researchr = {https://researchr.org/publication/Fain92},
cites = {0},
citedby = {0},
journal = {Int. J. Imaging Systems and Technology},
volume = {4},
number = {1},
pages = {22-27},
}