@article{article224c9cab, title = {Structure and bifurcation of pullback attractors in a non-autonomous Chafee-Infante equation}, author = {Carvalho, Alexandre Nolasco de and Langa, J. A and Robinson, J. C}, year = {2012}, doi = {10.1090/S0002-9939-2011-11071-2}, journal = {Proceedings of the American Mathematical Society} }