E.G. Galvez Torres, D.D. Cruz Nieto, J.A. Legua Cardenas, H.W. Noriega Cordova, R.F. Rodriguez Espinoza, Y.J. Velez Chang, Evaluation by Electron Microscopy of the Stomatal Density in the Leaves of the Sugar Beet (beta Vulgaris L.) Crop Fertilized with Compost Made from Sugarcane By-products, Chemical Engineering Transactions. 87 (2021) 601-606. doi:10.3303/CET2187101.