Borja, P., Cisneros, R., and Ortega, R. (2016).  A constructive procedure for energy shaping of port-Hamiltonian systems. Automatica, 72, 230--234.
	
Casta{\~{n}}os, F., Ortega, R., van~der Schaft, A., and Astolfi, A. (2009).  Asymptotic stabilization via control by interconnection of 	port-Hamiltonian systems.  Automatica, 45(7), 1611--1618.
	
Dirksz, D.A. and Scherpen, J.M. (2012).  Power-based control: Canonical coordinate transformations, integral and adaptive control. Automatica, 48(6), 1045--1056.
	
Donaire, A. and Junco, S. (2009).  On the addition of integral action to port-controlled Hamiltonian systems. Automatica, 45(8), 1910--1916.
	
Donaire, A., Mehra, R., Ortega, R., Satpute, S., Romero, J.G., Kazi, F., and Singh, N.M. (2016). Shaping the energy of mechanical systems without solving partial differential equations. IEEE Transactions on Automatic Control, 61(4), 1051--1056.
	
D{\"{o}}rfler, F., Johnsen, J.K., and Allg{\"{o}}wer, F. (2009). An introduction to interconnection and damping assignment
passivity-based control in process engineering. Journal of Process Control, 19(9), 1413--1426.
	
Ferguson, J., Donaire, A., and Middleton, R.H. (2017). Integral Control of Port-Hamiltonian Systems : Nonpassive Outputs Without Coordinate Transformation. IEEE Transactions on Automatic Control, 62(11), 5947--5953.
	
Fujimoto, K., Sakai, S., and Sugie, T. (2012).  Passivity based control of a class of Hamiltonian systems with 	nonholonomic constraints.  Automatica, 48(12), 3054--3063.
	
Guay, M. and Hudon, N. (2016).  Stabilization of nonlinear systems via potential-based realization.  IEEE Transactions on Automatic Control, 61(4), 1075--1080.
	
Khalil, H. (2002). Nonlinear Systems.  Prentice Hall, Upper Saddle River, New Jersey, 3rd edition.
	
Liu, Z., Ortega, R., and Su, H. (2010).  Stabilisation of nonlinear chemical processes via dynamic power-shaping passivity-based control.  International Journal of Control, 83(7), 1465--1474.
	
Nguyen, T.S., Hoang, N.H., and Hussain, M.A. (2018).  Tracking error plus damping injection control of non-minimum phase processes.  IFAC-PapersOnLine, 51(18), 643--648.	
	
Nguyen, T.S., Hoang, N.H., Hussain, M.A., and Tan, C.K. (2019). Tracking-error control via the relaxing port-Hamiltonian formulation: Application to level control and batch polymerization reactor. Journal of Process Control, 80, 152--166.
	
Ortega, R., van der Schaft, A., Maschke, B., and Escobar, G. (2002).  Interconnection and damping assignment passivity-based control of 	port-controlled Hamiltonian systems.  Automatica, 38, 585--596.
	
Ortega, R., van~der Schaft, A., Casta{\~{n}}os, F., and Astolfi, A. (2008).  Control by interconnection and standard passivity-based control of 	port-Hamiltonian systems.  IEEE Transactions on Automatic Control, 53(11), 2527--2542.
	
Ramirez, H., Maschke, B., and Sbarbaro, D. (2013). Irreversible port-Hamiltonian systems: A general formulation of 		irreversible processes with application to the CSTR.  Chemical Engineering Science, 89, 223--234.
	
Ram{\'{i}}rez, H., Sbarbaro, D., and Ortega, R. (2009). On the control of non-linear processes: An IDA-PBC approach.  Journal of Process Control, 19(3), 405--414.
	
Ryalat, M. and Laila, D.S. (2018).  A robust IDA-PBC approach for handling uncertainties in underactuated mechanical systems. IEEE Transactions on Automatic Control, 63(10), 3495--3502.
	
van der Schaft, A. (2017). $\mathcal{L}_2$-Gain and Passivity Techniques in Nonlinear Control. Springer, 3rd edition.