Faxu Li, Liang Wei, Haixing Zhao, Feng Hu, Xiujuan Ma. On the Estrada index of cactus graphs. Discrete Applied Mathematics, 203:94-105, 2016. [doi]
@article{LiWZHM16,
title = {On the Estrada index of cactus graphs},
author = {Faxu Li and Liang Wei and Haixing Zhao and Feng Hu and Xiujuan Ma},
year = {2016},
doi = {10.1016/j.dam.2015.09.026},
url = {http://dx.doi.org/10.1016/j.dam.2015.09.026},
researchr = {https://researchr.org/publication/LiWZHM16},
cites = {0},
citedby = {0},
journal = {Discrete Applied Mathematics},
volume = {203},
pages = {94-105},
}