@article{10_2298_FIL1918977M,
     author = {Gang Ma and Qiuju Bian and Jianfeng Wang},
     title = {Bounds on the weighted vertex {PI} index of cacti graphs},
     journal = {Filomat},
     pages = {5977 },
     year = {2019},
     volume = {33},
     number = {18},
     doi = {10.2298/FIL1918977M},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL1918977M/}
}