Bilinear spatial control of the velocity term in a Kirchhoff plate equation. Bradley, Mary Elizabeth, Lenhart, Suzanne (2001) Electronic Journal of Differential Equations (EJDE) [electronic only]
Biot-Savart-Laplace dynamical systems. Udrişte, Constantin, Udrişte, Sorin (1996) Balkan Journal of Geometry and its Applications (BJGA)
Boundary-value problems for a class of first order partial differential equations in Sobolev spaces and applications to the Euler flow H. Beirão da Veiga (1988) Rendiconti del Seminario Matematico della Università di Padova