1. Zhihua Liu, Pierre Magal and Shigui Ruan, Normal forms for semilinear equations with non-dense domain with applications, Journal of Differential Equations, 257 (4) (2014), 921-1011.
2. Zhihua Liu, Pierre Magal and Hui Tang,Hopf bifurcation for a spatially and age structured population dynamics model, DCDS B, 20 (6) (2015), 1735-1757.
3. Z. Liu, P. Magal and S. Ruan, Projectors on the generalized eigenspaces for functional differential equations using integrated semigroups, Journal Differential Equations 244 (2008)1784–1809.
4.A. Ducrot, Z. Liu, P. Magal, Essential growth rate for bounded linear perturbation of non-densely defined Cauchy problems, J. Math. Anal. Appl. 341 (2008)501–518.
5. Zhihua Liu, Pierre Magal and Shigui Ruan, Hopf Bifurcation for Non-densely Defined Cauchy Problems, Zeitschrift fur Angewandte Math. und Physik, 62 (2) (2011),191-222.
