I did a search on http://www.springer.com, one of the largest publishers of scientific journals, for "russian" and "german." The former resulted in nearly 3x the quantity of results for scientific journals. On the same site, there's also this page, which notes that over 200 are available. This only includes translated journals; the total quantity is probably much higher. A study from 1966 found that the relative rate of citations of Russian compared to German was sharply increasing. Since then, science in the former Soviet Union has come a long way, so this trend probably did not reverse.Pablo Sanchez wrote: I find myself doubting this and would like to see some kind of evidence for the assertion, given the high level of activity in German academia and research... but in any case it's my understanding that German technical jargon is effectively a second language anyway
That's all I could find on short notice. Actual statistics of publications are to be found in their respective languages, thus a pain in the ass to search.
EDIT: I looked up the largest libraries of Russia and Germany. The German library is dedicated to German language publications, and has 24.1 million items, while the Russian library has 42 million, in many languages. I found a Russian source that stated that the quantity of foreign publications was 12 million; therefore the number of Russian publications it holds is roughly 30 million.