The coherent behaviour (phase locking) was investigated by the method of sl
owly varying amplitudes for different inductances of the shunt as well. as
for different capacitances of junctions. The existence of thresholds of pha
se Locking at small inductances as well as at large inductances was explain
ed in the developed model. (C) 2000 Elsevier Science B.V. All rights reserv
ed.