A. Tröster, S. Ehsan, K. Belbase, P. Blaha, J. Kreisel, W. Schranz:
"Finite-strain Landau theory applied to the high-pressure phase transition of lead titanate";
Physical Review B, 95 (2017), 064111.
http://dx.doi.org/10.1103/PhysRevB.95.064111Electronic version of the publication:
http://publik.tuwien.ac.at/files/publik_258652.pdf