@misc{1196521, author = {Tim Boland}, title = {Government open systems interconnection profile users' guide, version 2:}, year = {1991}, month = {1991-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.SP.500-192}, language = {en}, }