4 matching record(s)

file D (Stack)Wolf, Helmut

"The Public and school Observatories of the German Democratic Republic"

extract from Jena Review, 1971/6, pp. 342-346.

[Unknown]

1971

file E (Jena Review)Wolf, Helmut

"Small Monocular Hand Telescopes from the Optical Museum of the Carl Zeiss Foundation in Jena"

in supplement to Jena Review, 1970, unpaginated

[Unknown]

1970

file E (Jena Review)Wolf, Helmut

"Opera Glasses from the Optical Museum in Jena"

in supplement to Jena Review, 1970, unpaginated

[Unknown]

1970

PER Wolf, Helmut

"Aktuelle Grabungsergebnisse aus der Altglashutte Barnau in Ostbayern"

in Kultur & Technik, no. 2/1982, pp. 125-126.

[1980-225]

1982