Aráuz Tijerino, B. A., López Mena, M. E., Hernández Martínez, C. de J. and López Toruño, A. W. (2014) “Distortion on four models irreversible hydrocolloids type IV dental stone”, Universitas (León) . Nicaragua, NI, 5(2), pp. 1–8. doi: 10.5377/universitas.v5i2.2029.