@ARTICLE{
author={Hansen P,Melot H,Gutman Ivan},
year={2005},
title={Variable neighborhood search for extremal graphs - 12. A note on the variance of bounded degrees in graphs.},
journal={MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY},
volume={54},
number={1},
pages={221-232},
document_type={Article},
} 

@ARTICLE{
author={Gutman Ivan,Hansen P,Melot H},
year={2005},
title={Variable neighborhood search for extremal graphs. 10. Comparison of irregularity indices for chemical trees},
journal={JOURNAL OF CHEMICAL INFORMATION AND MODELING},
volume={45},
number={2},
pages={222-230},
document_type={Article},
}