Judith C. Matthewman. The crystallographers' friend. Comput. J., 10(1):38-45, 1967. [doi]
@article{Matthewman67, title = {The crystallographers' friend}, author = {Judith C. Matthewman}, year = {1967}, doi = {10.1093/comjnl/10.1.38}, url = {https://doi.org/10.1093/comjnl/10.1.38}, researchr = {https://researchr.org/publication/Matthewman67}, cites = {0}, citedby = {0}, journal = {Comput. J.}, volume = {10}, number = {1}, pages = {38-45}, }