TY - JOUR AU - Gao, Wei TI - Extremal trees and molecular trees with respect to the Sombor-index-like graph invariants $\mathcal {SO}_5$ and $\mathcal {SO}_6$ JO - Czechoslovak Mathematical Journal PY - 2024 SP - 927 EP - 941 VL - 74 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2024.0221-24/ DO - 10.21136/CMJ.2024.0221-24 LA - en ID - 10_21136_CMJ_2024_0221_24 ER -