@article{JSFU_2016_9_3_a9,
     author = {Mikael Passare},
     title = {The trigonometry of {Harnack} curves},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {347--352},
     year = {2016},
     volume = {9},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2016_9_3_a9/}
}