Clyde Ruby, Gary T. Leavens. Safely creating correct subclasses without seeing superclass code. In OOPSLA. pages 208-228, 2000. [doi]
@inproceedings{RubyL00,
title = {Safely creating correct subclasses without seeing superclass code},
author = {Clyde Ruby and Gary T. Leavens},
year = {2000},
doi = {10.1145/353171.353186},
url = {http://doi.acm.org/10.1145/353171.353186},
tags = {Ruby},
researchr = {https://researchr.org/publication/RubyL00},
cites = {0},
citedby = {0},
pages = {208-228},
booktitle = {OOPSLA},
}