Baldwin Lind, P., and J. de los Ángeles Román Navarro. “The Inverted Symbolism of the Tree in Waiting for Godot by S. Beckett and The Cherry Orchard by A. Chekhov”. Beckettiana, no. 15, July 2016, pp. 21-35, http://revistascientificas.filo.uba.ar/index.php/Beckettiana/article/view/7584.