On the robustness of ALMOST-$ℛ$

Book, Ronald V.; Mayordomo, Elvira

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Volume 30 (1996) p. 123-133

Reducibilities on tally and sparse sets

Tang, Shouwen; Book, Ronald V.

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Volume 25 (1991) p. 293-302

On expressing commutativity by finite Church-Rosser presentations : a note on commutative monoids

Avenhaus, Jürgen; Book, Ronald V.; Squier, Craig C.

RAIRO. Informatique théorique, Volume 18 (1984) p. 47-52

The independence of certain operations on semiAFLs

Book, Ronald V.; Greibach, Sheila A.

RAIRO. Informatique théorique, Volume 12 (1978) p. 369-385