Thomas R. Hancock, Lisa Hellerstein. Learning Read-Once Formulas over Fields and Extended Bases. In COLT. pages 326-336, 1991. [doi]
@inproceedings{HancockH91, title = {Learning Read-Once Formulas over Fields and Extended Bases}, author = {Thomas R. Hancock and Lisa Hellerstein}, year = {1991}, url = {http://portal.acm.org/citation.cfm?id=114836.114867}, researchr = {https://researchr.org/publication/HancockH91}, cites = {0}, citedby = {0}, pages = {326-336}, booktitle = {COLT}, }