Patent Searching in a Pharmaceutical Company. - Trisha M. Johns; Dorothy I. Ryno (J. Chem. Inf. Comput. Sci., 1978)

An Evaluation of the Leading Patent Equivalents Services. - Trisha M. Johns; William G. Andrus; Stanley De Voe; John Myers; Roger Grant Smith; Otokar Uhlir (J. Chem. Inf. Comput. Sci., 1979)

Wiswesser line notation as a structural summary medium. - Trisha M. Johns; Michael Clare (J. Chem. Inf. Comput. Sci., 1982)