Kristen Nygaard. Basic concepts in object oriented programming (abstract only). SIGPLAN Notices, 21(10):187-188, 1986. [doi]
@article{Nygaard86a,
title = {Basic concepts in object oriented programming (abstract only)},
author = {Kristen Nygaard},
year = {1986},
doi = {10.1145/323648.323768},
url = {https://doi.org/10.1145/323648.323768},
researchr = {https://researchr.org/publication/Nygaard86a},
cites = {0},
citedby = {0},
journal = {SIGPLAN Notices},
volume = {21},
number = {10},
pages = {187-188},
}