H. KASUMBA, Shape optimization approaches to free surface problems. InternationalJournal of Numerical Methods in Fluids, (2014) 74:818–845.

H. KASUMBA and K. KUNISCH, On computation of shape Hessian of the cost functional without shape sensitivity of the state variable, Journal of Optimization Theory and Applications, (2014) DOI: 10.1007/s10957-013-0520-4.

 H. KASUMBA and K. KUNISCH, A. LAURAIN, A bilevel shape optimization problem for the exterior Bernoulli free boundary value problem, Interfaces and Free Boundaries,  16: 459-487 (2014). 

E. F. CARA ,T. HORSINY and H. KASUMBA, Some inverse and control problems for fluids. Ann. Math. Blaise Pascal 20 (2013), no. 1, 101–138. 

 H. KASUMBA and K. KUNISCH, Vortex control of instationary channel flows using translation invariant cost functionals . Comput. Optim. Appl. 55 (2013), no. 1, 227–263. 

H. KASUMBA and K. KUNISCH, On a free surface PDE constrained shape optimization problem. Appl. Math. Comput. 218 (2012), no. 23, 11429–11450. 

H. KASUMBA and K. KUNISCH, Vortex control in channel flows using translation invariant cost functionals. Comput. Optim. Appl. 52 (2012), no. 3, 691–717. 

H. KASUMBA and K. KUNISCH, On shape sensitivity analysis of the cost functional without shape sensitivity of the state variable. Control and Cybernet. 40 (2011), no. 4, 989–1017. 

H. KASUMBA and K. KUNISCH, Shape design optimization for viscous flows in open channel with a bump and an obstacle. Methods and Models in Automation and Robotics (2010), 284-289 doi:10.1109/MMAR.2010.5587219.