Reference
A. M. Gonzalez-Rodriguez, Marisol S. Jimenez, Domingo Morales, G. Aschan, Rainer Lösch (1999): Physiological Responses of Laurel azorica and Viburnum rigidum to Drought Stress: Osmotic Adjustment and Tissue Elasticity. – Phyton, Annales Rei Botanicae, Horn – 39_2: 251 - 263.