Published in Contributions in Science, in 1965, in volume 86, pages 1-18

Published in Contributions in Science, in 1965, in volume 87, pages 1-18

Published in Contributions in Science, in 1965, in volume 88, pages 1-6

Published in Contributions in Science, in 1965, in volume 89, pages 1-4

Published in Contributions in Science, in 1965, in volume 90, pages 1-7

Published in Contributions in Science, in 1965, in volume 91, pages 1-10