Some notes to the algebraization of Dempster-Shafer treatment of uncertainty Tomáš Havránek (1989) Kybernetika
Some Remarks on the Average Sample Number of Sequential and Non-Sequential Tests. W. Stadje (1982) Metrika
Statistische Entscheidungsprobleme mit nichtkompaktem Aktionenraum. Jürgen Kindler (1981) Manuscripta mathematica