Further considerations on the number of limit cycles of vector fields of the form ()
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[1] V. A. Pliss. Nonlocal Problems of the Theory of Oscillations , 1966 .
[2] N. Lloyd. Small amplitude limit cycles of polynomial differential equations , 1983 .
[3] A. L. Neto. On the number of solutions of the equation $$\frac{{dx}}{{dt}} = \sum\limits_{j = 0}^n {a_j (t) x^j ,0 \leqq t \leqq 1,} $$ for whichx(0)=x(1) , 1980 .
[4] L. Perko. Rotated vector fields and the global behavior of limit cycles for a class of quadratic systems in the plane , 1975 .
[5] G. Duff,et al. Limit-Cycles and Rotated Vector Fields , 1953 .