Mutual phase locking of very nonidentical spin torque nanooscillators via spin wave interaction Ansar R. Safin, Nicolay N. Udalov and Mikhail V. Kapranov Eur. Phys. J. Appl. Phys., 67 2 (2014) 20601 Published online: 01 August 2014 DOI: 10.1051/epjap/2014130518