Functions Computable in the Limit by Probabilistic Machines. - R. V. Freivald (MFCS, 1974)

Minimal Gödel Numbers and Their Identification in the Limit. - R. V. Freivald (MFCS, 1975)

Inductive Inference with Additional Information. - R. V. Freivald; Rolf Wiehagen (J. Inf. Process. Cybern., 1979)