Coll, B.; Gasull, A.; Llibre, J. Some theorems on the existence, uniqueness, and nonexistence of limit cycles for quadratic systems.J. Differential Equations 67 (1987), no. 3, 372–399.
For users without a
, Relay Station allows linking from MR numbers in online mathematical literature
directly to electronic journals and original articles.
Subscribers receive the added value of full MathSciNet reviews.