Survey of Computer Programs for Chemical Information Searching; NBS Technical Note 85Ethel C. Koller Herbert R. Marden · First published 2021Open the Tome
A survey of computer programs for chemical information searchingEthel C. Marden · First published 1961Open the Tome
A first approach to patent searching procedures on Standards Electronic Automatic Computer (SEAC)Harold Pfeffer, Herbert R. Koller, Ethel C. Marden · First published 1958Open the Tome
