BIOGRAPHICAL FILE 1969-1976
Article about Yvanoff from Sunburst magazine, , with associated correspondence 1976
Clippings
About Yvanoff
On various subjects with notes and commentary by Yvanoff
CORRESPONDENCE 1967-1973
Bourret, W. 1973 and undated
Soviet Union. Posol'stvo (Japan) 1971
Holograph (incomplete)
Typescript
Rough draft, with Yvanoff's corrections
Final draft