Linda Fish Compton: Review of Andalusian Lyrical Poetry and Old Spanish Love Songs: The "Muwashshah" and Its "Kharja." by S. G. Armistead", Hispanic Review, Vol. 46, No. 1. (Winter, 1978), pp. 92-95 [1]: "The use of Mozarabic should not be limited to "Christians and Jews living under Muslim rulers", since it is clear that most Hispano-Moslems also spoke [it]"
LIPSKI, John M.: "Review of El Mozarabe de Valencia by Leopoldo Penarroja Torrejon", International Journal of Middle East Studies.Vol. 24, No. 3 (Aug., 1992), pp. 519-521 [2]
CASTRO, Américo: "Mozarabic Poetry and Castile", Comparative Literature. Vol. 4, No. 2 (Spring, 1952), pp. 188-189.[3]:
"[...] The new-found Mozarabic poetry is not written in Castilian, and that therefore its existence cannot be used to prove that there was a lyric poetry in Castile"