Erratum and Addendum: Eilenberg-Moore algebras for stochastic relations

In Information and Computation 204 (2006), 1756–1781, the structure of Eilenberg-Moore algebras for the Giry monad for subprobabilities on Polish spaces is investigated in some detail by the present author. This note corrects a gap in one of the proofs. Additionally, it adapts the general results for the discrete Giry monad.