1. How to Detect, Assess and Correct Hazard Trees in Recreational Areas;Albers,1993
2. Tree, Shrub, and Other Woody Plant Management − Standard Practices. Tree Risk Assessment. Tree Structure Assessment ANSI A300 (Part 9);ANSI,2011
3. Guide to Hazard Tree Management;Blodgett,2017
4. Summer branch drop (SBD). Concepto y características;Calaza;PARJAP: Boletín de la Asociación Española de Parques y Jardines,2015
5. El riesgo del arbolado urbano;Calaza,2016