TY - JOUR AU - Wurm, A. AU - Fuchss Portela, Kathrin TI - Breakup of shearless invariant tori in cubic and quartic nontwist maps JO - Communications in nonlinear science & numerical simulation VL - 17 IS - 5 SN - 1007-5704 CY - Amsterdam [u.a.] PB - Elsevier M1 - RWTH-CONV-014118 SP - 2215-2222 PY - 2012 LB - PUB:(DE-HGF)16 ; PUB:(DE-HGF)7 UR - <Go to ISI:>//WOS:000299062100025 DO - DOI:10.1016/j.cnsns.2011.03.008 UR - https://publications.rwth-aachen.de/record/133037 ER -