The Construction of Journal-Oriented Classification Schemes. - R. D. Feinman; K. L. Kwok (J. Am. Soc. Inf. Sci., 1973)

Classification of scientific documents by means of self-generated groups employing free language. - R. D. Feinman; K. L. Kwok (J. Am. Soc. Inf. Sci., 1973)