1
by Constantin, Douglas, Nagy, Voiculescu
Published 1981
Birkhäuser
... and (since 1978) by an increasing number of foreign mathematicians. Thus the 1980 Conference can be regarded...

2
by Bautzer, Kahane, Nagy
Published 1972
Birkhäuser
... in this volume. Two of the three lectures presented by Russian mathematicians are rendered in English, the third...