H. Pérez-Aguilar, M. Lacruz-Asaro, and F. Arán-Ais, “Evaluation of Biostimulants Based on Recovered Protein Hydrolysates from Animal By-products as Plant Growth Enhancers”, J Plant Sci Phytopathol, vol. 7, no. 2, pp. 042–047, Jul. 2023.