Julián / Mestre Sancho Hontangas Carrascosa, Juan A. / Orts Delgado, Francisco J. is currently considered a "single author." If one or more works are by a distinct, homonymous authors, go ahead and split the author.
Julián / Mestre Sancho Hontangas Carrascosa, Juan A. / Orts Delgado, Francisco J. is composed of 1 name.