Publications by Johann Reger 2020 -- Enrique J. Vidal, Oscar B. Cieza, Johann RegerExplicit and Implicit IDA-PBC Design and Implementation for a Portal Crane 2019 -- Oscar B. Cieza, Johann RegerIDA-PBC for Underactuated Mechanical Systems in Implicit Port-Hamiltonian Representation 2018 -- Oscar B. Cieza, Johann RegerIDA-PBC for Polynomial Systems: An SOS-based Approach