López Udias, S., Fabregat, C. and Mateo, G. 1997. Santolina ageratifolia Bamades ex Asso (Compositae) and their relationships with S. rosmarinifolia L. Anales del Jardín Botánico de Madrid. 55, 2 (Dec. 1997), 285–296. DOI:https://doi.org/10.3989/ajbm.1997.v55.i2.275.