J. Douglas Hill, John N. Warfield. Unified Program Planning. IEEE Transactions on Systems, Man, and Cybernetics, Part A, 2(5):610-621, 1972. [doi]
@article{HillW72,
title = {Unified Program Planning},
author = {J. Douglas Hill and John N. Warfield},
year = {1972},
doi = {10.1109/TSMC.1972.4309189},
url = {http://dx.doi.org/10.1109/TSMC.1972.4309189},
researchr = {https://researchr.org/publication/HillW72},
cites = {0},
citedby = {0},
journal = {IEEE Transactions on Systems, Man, and Cybernetics, Part A},
volume = {2},
number = {5},
pages = {610-621},
}