Physical Security: Exterior Application Rae Zimmerman and Carlos Restrepo Springer Nature, Switzerland , In: Shapiro L. R., Maras M-H. (eds) Encyclopedia of Security and Emergency Management. Springer Nature, Switzerland AG, Cham, 2019. August 1, 2019 Publication File https://link.springer.com/referenceworkentry/10.1007/978-3-319-69891-5_221-1 Wagner Faculty Rae Zimmerman