@article{PIM_1993_N_S_53_67_a2,
     author = {Ivan Gutman and Yeong-Nan Yeh},
     title = {Deducing {Properties} of {Trees} {From} {Their} {Matula} {Numbers}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {17 },
     publisher = {mathdoc},
     volume = {_N_S_53},
     number = {67},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1993_N_S_53_67_a2/}
}