Hartmut Ehrig, Hans-Jörg Kreowski, Peter Padawitz. Algebraic implementation of abstract data types: an announcement. SIGACT News, 11(2):25-29, 1979. [doi]
@article{EhrigKP79,
title = {Algebraic implementation of abstract data types: an announcement},
author = {Hartmut Ehrig and Hans-Jörg Kreowski and Peter Padawitz},
year = {1979},
doi = {10.1145/1008620.1008622},
url = {https://doi.org/10.1145/1008620.1008622},
researchr = {https://researchr.org/publication/EhrigKP79},
cites = {0},
citedby = {0},
journal = {SIGACT News},
volume = {11},
number = {2},
pages = {25-29},
}