Christoph Schulz. Dual pairs of non-polytopal diagrams and spheres. Discrete Mathematics, 55(1):65-72, 1985. [doi]
@article{Schulz85,
title = {Dual pairs of non-polytopal diagrams and spheres},
author = {Christoph Schulz},
year = {1985},
doi = {10.1016/S0012-365X(85)80021-2},
url = {http://dx.doi.org/10.1016/S0012-365X(85)80021-2},
researchr = {https://researchr.org/publication/Schulz85},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {55},
number = {1},
pages = {65-72},
}