Richard E. Fikes, Peter E. Hart, Bertram Raphael. Themes in automatic problem solving. IEEE Computer, 6(5):11-18, 1973. [doi]
@article{FikesHR73,
title = {Themes in automatic problem solving},
author = {Richard E. Fikes and Peter E. Hart and Bertram Raphael},
year = {1973},
doi = {10.1109/MC.1973.6536713},
url = {http://dx.doi.org/10.1109/MC.1973.6536713},
researchr = {https://researchr.org/publication/FikesHR73},
cites = {0},
citedby = {0},
journal = {IEEE Computer},
volume = {6},
number = {5},
pages = {11-18},
}