@article{05381098, title = {Capacity relations in a flat quadrilateral.}, journal = {Sibirskij Matematicheskij Zhurnal}, volume = {49}, year = {2008}, pages = {886-897}, zbl = {1164.30368}, language = {en}, url = {http://dml.mathdoc.fr/item/05381098} }
Romanov, A.S. Capacity relations in a flat quadrilateral.. Sibirskij Matematicheskij Zhurnal, Tome 49 (2008) pp. 886-897. http://gdmltest.u-ga.fr/item/05381098/