Lima-Flores, A. ., Palomino-Merino, R. ., Espinosa, E. ., Castano, V. M. ., Merlo-Juarez, E. ., Cruz-Sanchez, M. . and Espinosa, G. . (2016) “The Indoor Radon Concentration within the Tunnels of the Cholula Pyramid Through a Nuclear Tracks Methodology ”, Journal of Nuclear Physics, Material Sciences, Radiation and Applications, 4(1), pp. 77–88. doi: 10.15415/jnp.2016.41008.