found: Work cat.: Violence and threats of violence against women and men in the United States, 1994-1996, 1999.
found: The dark side of interpersonal communication, 1994:p. 285 (Symbolic violence and threats of mild, moderate, and serious violence comprise the second-order factor representing threats of violence)
found: Approaching a crisis: threats of violence, divorce, and suicide, 1998.
found: Guidelines for responding to student threats of violence, c2006.
found: Building security,2004:p. 1-27 (after 9/11, retail concerns expanded to include violent threats to intimidate shoppers and disrupt operations)
