@article{articled90036a2,
title   = {Cosmological black holes and white holes with time-dependent mass},
author = {Maciel, Alan and Guariento, Daniel Carrasco and Mendes, Carlos Molina},
year = {2015},
doi = {10.1103/PhysRevD.91.084043},
journal   = {Physical Review D (Particles, Fields, Gravitation and Cosmology)}
}