[POSIX4] Bill Gallmeister, 1st Edition September 1994, O'Reilly Associates, Inc., POSIX.4 Programming for the Real World, 1-56592-074-0.
[ULK] Daniel P. Bovet and Marco Cesati, 2001, O'Reilly Associates, Inc., Understanding the LINUX Kernel, 0-596-00002-2.
[ToLinux] Bill Weinberg and Marco Cesati, MontaVista Software, Inc., 2001, Moving from a Proprietary RTOS To Embedded Linux®.
[POSIX4] Bill Gallmeister, 1st Edition September 1994, O'Reilly Associates, Inc., POSIX.4 Programming for the Real World, 1-56592-074-0.
[LowLat] Andrew Morton, Linux Scheduling Latency (http://www.zip.com.au/~akpm/linux/schedlat.html) .
[kpreem] Robert Love, The Linux Kernel Preemption Project (http://kpreempt.sourceforge.net) .
[TimeSys] TimeSys, TimeSys Linux.
[FT] Systems Software Lab --- Oregon Graduate Institute , The Firm Timers Home Page (http://www.cse.ogi.edu/~luca/firm.html) .
[RTLtutorial] Ismael Ripoll, 2000, Tutorial del API de RTLinux.
[RTAIGuide] Paolo Mantegazza, E. Bianchi, L. Dozio, Mike Angelo, and David Beal, September, 2000, Lineo, Inc, DIAPM. RTAI Programming Guide 1.0.
[Pierre00] Pierre Cloutier, Paolo Mantegazza, Steve Papacharalambous, Ian Soanes, Stuart Hughes, and Karim Yaghmour, November, 2000, Real Time Operating Systems Workshop, DIAPM-RTAI POSITION PAPER.
[WebQNX] QNX Documentation www.qnx.com.