''signs & voices is the first book of English language poems by a writer whose previous collections have appeared in German: Stationen in 1968, aufenthalte in 1969, and innere sicherheit, concurrently with this one.'
'Taken as a whole, signs & voices cuts a progressive curve of experience: intelligent, unusual, and rising at best to a vivid power. The book is a real collection, not merely an assembly of individual pieces. Part of the attraction and difficulty of the poems lies in their character as products of a second language, although their merits glow through and transcend this initial unfamiliarity. Jurgensen's seriousness is not a thing to set apart from his poetry.'' (Source : Author's website)
St Lucia : University of Queensland Press , 1973 pg. 35