Frederick W. Blackwell, Robert H. Anderson. An on-line symbolic mathematics system using hand-printed two-dimensional notation. In Solomon L. Pollack, Thomas R. Dines, Ward C. Sangren, Norman R. Nielsen, William G. Gerkin, Alfred E. Corduan, Len Nowak, James L. Mueller, Joseph Horner III, Pasteur S. T. Yuen, Jeffery Stein, Margaret M. Mueller, editors, Proceedings of the 24th national conference, ACM 1969, USA, 1969. pages 551-557, ACM, 1969. [doi]
@inproceedings{BlackwellA69,
title = {An on-line symbolic mathematics system using hand-printed two-dimensional notation},
author = {Frederick W. Blackwell and Robert H. Anderson},
year = {1969},
doi = {10.1145/800195.805960},
url = {https://doi.org/10.1145/800195.805960},
researchr = {https://researchr.org/publication/BlackwellA69},
cites = {0},
citedby = {0},
pages = {551-557},
booktitle = {Proceedings of the 24th national conference, ACM 1969, USA, 1969},
editor = {Solomon L. Pollack and Thomas R. Dines and Ward C. Sangren and Norman R. Nielsen and William G. Gerkin and Alfred E. Corduan and Len Nowak and James L. Mueller and Joseph Horner III and Pasteur S. T. Yuen and Jeffery Stein and Margaret M. Mueller},
publisher = {ACM},
isbn = {978-1-4503-7493-4},
}