@article{PIM2_1998__64(78)_258089,
     author = {Dragovi\'c, Vladimir},
     title = {Classical integrable mechanical systems and their integrable perturbations.},
     journal = {Publications de l 'Institut Math\'ematique. Nouvelle S\'erie},
     pages = {153},
     publisher = {mathdoc},
     volume = {64(78)},
     year = {1998},
     zbl = {0999.37038},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/PIM2_1998__64(78)_258089/}
}