Vladimir I. Arnold/ Alexander B. Givental (EDT)/ Boris A. Khesin (EDT)/ Alexander N. Varchenko (EDT)/ Victor A. Vassiliev (EDT)
(1)
Vladimir I. Arnold/ Alexander B. Givental (EDT)/ Boris A. Khesin (EDT)/ Jerrold E. Marsden (EDT)/ Alexander N. Varchenko (EDT)
(1)