Yurij Stoyan, Johannes Terno, Guntram Scheithauer, Nikolay Gil, Tatiana Romanova. Phi-functions for primary 2D-objects. Stud. Inform. Univ., 2(1):1-32, 2002. [doi]
@article{StoyanTSGR02,
title = {Phi-functions for primary 2D-objects},
author = {Yurij Stoyan and Johannes Terno and Guntram Scheithauer and Nikolay Gil and Tatiana Romanova},
year = {2002},
url = {http://xserve.ephe-sorbonne.org/~studia/STUDIA_VOL2_N1/01-article.pdf},
researchr = {https://researchr.org/publication/StoyanTSGR02},
cites = {0},
citedby = {0},
journal = {Stud. Inform. Univ.},
volume = {2},
number = {1},
pages = {1-32},
}