Eugene Garfield, Irving H. Sher. KeyWords Plus - Algorithmic Derivative Indexing. JASIS, 44(5):298-299, 1993.
@article{GarfieldS93, title = {KeyWords Plus - Algorithmic Derivative Indexing}, author = {Eugene Garfield and Irving H. Sher}, year = {1993}, researchr = {https://researchr.org/publication/GarfieldS93}, cites = {0}, citedby = {0}, journal = {JASIS}, volume = {44}, number = {5}, pages = {298-299}, }