Michael Athans. The Matrix Minimum Principle. Inf. Comput., 11(5/6):592-606, November-December 1967.
@article{Athans67,
title = {The Matrix Minimum Principle},
author = {Michael Athans},
year = {1967},
month = {November-December},
researchr = {https://researchr.org/publication/Athans67},
cites = {0},
citedby = {0},
journal = {Inf. Comput.},
volume = {11},
number = {5/6},
pages = {592-606},
}