@article{KJM_2002_24_1_a12,
     author = {Miloje Rajovi\'c and Dragan Dimitrovski},
     title = {The {Clairaut} and {Lagrange} areolar equation},
     journal = {Kragujevac Journal of Mathematics},
     pages = {123 - 133},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2002},
     url = {http://geodesic.mathdoc.fr/item/KJM_2002_24_1_a12/}
}