Control and estimation of the boundary heat transfer function in Stefan problems V. Barbu; K. Kunisch; W. Ring — 1996 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
Global existence for the Hamilton-Jacobi equations in Hilbert space V. Barbu; G. Da Prato — 1981 Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
Feedback stabilization of semilinear heat equations. Barbu, V.; Wang, G. — 2003 Abstract and Applied Analysis