Regular Gleason Measures and Generalized Effect Algebras
  We study measures, finitely additive measures, regular measures, and $\sigma$-additive measures that can attain even infinite values on the quantum logic of a Hilbert space. We show when particular classes of non-negative measures can be studied in the frame of generalized effect algebras. 
Anatolij Dvure\v{c}enskij, Ji\v{r}\'i Janda
math-ph math.MP