Credits for LFDS user space source code located in folder openair2/UTILS/LFDS/liblfds6.1.1/
http://liblfds.org/.
Extract from http://liblfds.org/pages/downloads_and_license.html:
"There is no license. You are free to use this software in any way, for any purpose. Go forth and create wealth!
If however for legal reasons a licence is required, the license of your choice will be granted."


Credits for source code common/utils/collection/queue.h:
The Regents of the University of California: BSD 3-Clause Licence.


Credits for source code common/utils/collection/tree.h:
Niels Provos <provos@citi.umich.edu>: BSD 2-Clause Licence.