@article{RM_1989_44_3_a19,
     author = {V. Yu. Ovsienko and O. D. Ovsienko and Yu. V. Chekanov},
     title = {Classification of contact-projective structures on supercircles},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {212--213},
     publisher = {mathdoc},
     volume = {44},
     number = {3},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1989_44_3_a19/}
}