@article{Sheikhi2021,
TITLE = {{k}-Connected Relay Node Deployment in Heterogeneous Wireless Sensor Networks},
AUTHOR = {Sheikhi, Hemmat and Hoseini, Mohamad and Sabaei, Masoud},
LANGUAGE = {eng},
DOI = {10.1007/s11277-021-08613-x},
PUBLISHER = {Springer},
ADDRESS = {New York, NY},
YEAR = {2021},
DATE = {2021},
JOURNAL = {Wireless Personal Communications},
VOLUME = {120},
PAGES = {3277--3292},
}