Lecture date: 1977-04-09
Very very dark picture- Sound not very good at the begining of the lecture.
source
UCfE4Y-61_QO-JYg0WnT0n6Q
Lecture date: 1977-04-09
Very very dark picture- Sound not very good at the begining of the lecture.
source
UCfE4Y-61_QO-JYg0WnT0n6Q
