[Blog Post] Some conclusions drawn from twelve years of studying the Voynich manuscript.

[Rafal]

Be careful with automatic translation. I am not sure what you see but my transation is not the best

First sentence:
Общеизвестно, что в рукописи Войнича использовали не кондиционный материал пергамента.

Translation:
It is common knowledge that in the manuscripts of Voynich they did not use parchment material.

Should be:
It is well known that the parchment used for the Voynich manuscript was of substandard quality. 
(literally: they used not quality material of parchment)