ERIC Clearinghouse on Educational ManagementSchneider, Tod2006-09-272006-09-272001-02https://hdl.handle.net/1794/33682 p.A microfiche copy of this title is available through the UO Libraries under the call number: DOC-US/MF ED 1.310/2:44955018440 bytesapplication/pdfen-USSchools -- Safety measuresElectronic security systemsArticle