@misc{misc56d38de5,
title   = {QCD sum rules approach to the X; Y and Z states},
author = {Albuquerque, Raphael M. and Khemchandani, K. P. and Dias, Jorgivan M. and Zanetti, Carina M. and Martinez Torres, Alberto and Navarra, Fernando Silveira and Nielsen, Marina},
year = {2019}
}