Buyantogtokh Lkhagva,Horoldagva Batmend,Gutman Ivan (2024) On minimum generalized ABC index of graphs, FILOMAT, vol. 38, br. 19, str. 6639-6650 (Article) 

Dorjsembe Shiikhar,Buyantogtokh Lkhagva,Gutman Ivan,Horoldagva Batmend,Reti Tamas (2023) Irregularity of Graphs, MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY, vol. 89, br. 2, str. 371-388 (Article) 

Horoldagva Batmend,Buyantogtokh Lkhagva,Dorjsembe Shiikhar,Gutman Ivan (2016) Maximum Size of Maximally Irregular Graphs, MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY, vol. 76, br. 1, str. 81-98 (Article) 

Das Kinkar Ch,Gutman Ivan,Horoldagva Batmend (2012) Comparing Zagreb Indices and Coindices of Trees, MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY, vol. 68, br. 1, str. 189-198 (Article) 

Horoldagva Batmend,Gutman Ivan (2011) On Some Vertex-Degree-Based Graph Invariants, MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY, vol. 65, br. 3, str. 723-730 (Article)