Alexei Remizov/ Roger Keys (TRN)/ Brian Murphy (TRN)
(2)
Leonid Tsypkin/ Roger Keys (TRN)/ Angela Keys (TRN)
(1)
Leonid Tsypkin/ Roger Keys (TRN)/ Angela Keys (TRN)/ Roger Keys/ Angela Keys
(1)
Roger (Lecturer in Russian Keys Lecturer in Russian University of St Andrews)
(1)
Shelley Mallet/ Doreen Rosenthal/ Deborah Keys/ Roger Averill
(1)