| 
            
                R. Kraimer and K. Cha, “Alarm Handler for the Advanced Photon Source Control System”, in Proc. 14th Particle Accelerator Conf. (PAC'91), San Francisco, CA, USA, May 1991, pp. 1314-1317. | 
                                
            
             | 
            
                J. Knott et al., “The Advanced Photon Source Control System”, in Proc. 14th Particle Accelerator Conf. (PAC'91), San Francisco, CA, USA, May 1991, pp. 2526-2529. |