On the existence of Hopf bifurcation in an open economy model
Makovínyiová Katarína TUZDFMDG - Katedra matematiky a deskriptívnej geometrie
Zimka Rudolf
Proceedings of Equadiff 11 : proceedings of minisymposia and contributed talks, July 25-29, 2005, Bratislava. P. 229-236. - Bratislava : Comenius University, 2007
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http://www.iam.fmph.uniba.sk/equadiff/htmls/_proceedings/_makovinyiova/makovinyiova.pdf