by Rodríguez, J.D., Muñoz-Acevedo, A., Méndez, A.L., Jiménez, R.A., Gutiérrez, R.G.
Published in South African journal of botany (01.09.2014)

by Bhat, R.B., Laura, P.A.A., Gutierrez, R.G., Cortinez, V.H., Sanzi, H.C.
Published in Journal of sound and vibration (22.04.1990)

by Gutierrez, R.G, Carroll, R.J

by Gutierrez, R.G, Carroll, R.J, Iturria, S.J

by Gutierrez, R.G, Carroll, R.J, Wang, S, Wang, C.Y