@article{article45ec5459,
title   = {Elementary excitations of a higgs–yukawa system},
author = {Natti, Erica Regina Takano and Natti, Paulo Laerte and Lin, Chi-Yong and Piza, Antonio Fernando Ribeiro de Toledo},
year = {2013},
doi = {10.1007/s13538-013-0129-y},
journal   = {BRAZILIAN JOURNAL OF PHYSICS}
}