K. Hasík, Uniqueness of limit cycle in predator-prey system with symmetric prey isocline, Math. Biosci.164 (2000), 203–215.
K. Hasík, Uniqueness of limit cycles in predator-prey system: The role of weight functions, J. Math. Anal. Appl.277 (2003), 130–141.
K. Hasík, Weight functions and the uniqueness of limit cycles in predator-prey system, Canadian Applied Math. Quarterly11, 2003 (2004), 213–228.
K. Hasík, On a predator-prey system of Gause type, J. Math. Biology60 (2010), 59–74.
Hasik, Karel; Trofimchuk, Sergei Slowly oscillating wavefronts of the KPP-Fisher delayed equation, Discrete Contin. Dyn. Syst.34 (2014), no. 9, 3511–3533.
Hasik, Karel; Trofimchuk, Sergei An extension of Wright's 3/2-theorem for the KPP-Fisher delayed equation, Proc. Amer. Math. Soc.143 (2015), no. 7, 3019–3027.
K. Hasík, J. Kopfová, P. Nábělková, S. Trofimchuk, Traveling waves in the nonlocal KPP-Fisher equation: different roles of the right and the left interactions. Journal of Differential Equations260 (2016), no. 7, 6130–6175.