Extremal graphs for the geometric-arithmetic index with given minimum degree. - Tomica Divnic; Milica Milivojevic; Ljiljana Pavlovic (Discret. Appl. Math., 2014)

The variation of the Randić index with regard to minimum and maximum degree. - Milica Milivojevic; Ljiljana Pavlovic (Discret. Appl. Math., 2017)