http://www.kansasflyer.org/index.asp?nav=Avi&sec=Asi&tab=Theory&pg=2
https://pixhawk.ethz.ch/software/imu/pressure#calculating_indicated_airspeedstall_speed
http://www.freescale.com/files/sensors/doc/app_note/AN1573.pdf
http://www.rcgroups.com/forums/showthread.php?t=1367735
https://pixhawk.ethz.ch/software/imu/pressure
http://www.mikrocontroller.net/topic/203663
http://intern.ipv.uni-stuttgart.de/content/web6/FA%202006%20Selected%20Fotos/vortrag_tex.pdf
http://store.diydrones.com/Kit_MPXV7002DP_p/kt-mpxv7002dp-01.htm