Khiva, summer hall; from left to right - S.Kleene, G.Zemanek, dancers, M.Zemanek

Khiva, summer hall; A. vanWijngaarden, Zemaneks, D.Knuth. F.Strassen, B.Trakhtenbrot

Khiva; Zemaneks and the hosts

Zemaneks

Urgench; tour to a school; N.Shanin, A, Kreczmar, M.Zemanek, and her children

Urgench; tour to a school; O.Ryzhov, Zemaneks, J.Knuth, Yu.Matiyasevich, G.Adelson-Velsky, N.Nagornyi

Reception in Urgench; N. Nepeivoda, A. vanWijngaarden, M.Zemanek

Urgench; tour to the silk-weaving mill

Urgench; reception at the UzSSR Academy of Sciences. D.Knuth proposes a toast.; to the left - his wife, right - M.Zemanek

Prof. Zemanek is absent and will response on his return to Vienna.

Returned from USA and two trips in Central Europe the author found the addressee's letter of April 29 with the bad news about his health. The author and his wife hope and wish the addressee the quick recovery.