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@article{PDA_1979_9_a7, author = {J. L. Simovljevitch}, title = {Further {Note} on the {Calculus} of {Perturbations} of {Asteroid} {Orbits} {During} {Proximity}}, journal = {Publications of the Department of Astronomy}, pages = {71 }, publisher = {mathdoc}, volume = {9}, year = {1979}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PDA_1979_9_a7/} }
J. L. Simovljevitch. Further Note on the Calculus of Perturbations of Asteroid Orbits During Proximity. Publications of the Department of Astronomy, Tome 9 (1979), p. 71 . http://geodesic.mathdoc.fr/item/PDA_1979_9_a7/