Geodesic
The quandles with two operations
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 6 (2011), pp. 11-15 
D. A. Fedoseev. The quandles with two operations. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 6 (2011), pp. 11-15. http://geodesic.mathdoc.fr/item/VMUMM_2011_6_a2/
@article{VMUMM_2011_6_a2,
     author = {D. A. Fedoseev},
     title = {The quandles with two operations},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {11--15},
     year = {2011},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2011_6_a2/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

Virtual quandles with two operations and the corresponding invariants of long virtual knots are discussed. A certain knot invariant is constructed and an example of proof of unequivalency of two knots is presented.