This book "asserts that the origin and spread of languages must be examined primarily through the time-tested techniques of linguistic analysis, rather than those of evolutionary biology" and "defends traditional practices in historical linguistics while remaining open to new techniques, including computational methods" and "will appeal to readers interested in world history and world geography."
Grammatikerwerb vor und nach der Pubertät [Grammar Acquisition Pre and Post Puberty]
The author presents a longitudinal study on verb placement in children who have spontaneously learned German as a second language. It compares the position of the verb in main and subordinate clauses in two half-sisters whose mother tongue is Russian, and who came to Germany at the ages 8 and 14, respectively. The study shows that children and adolescents differ substantially in how rapidly they can achieve stable mastery of the target language.