Title: Materīaly dli͡a izuchenīi͡a fizicheskago razvitīi͡a di͡etskago i i͡unosheskago vozrastov v zavisimosti ot nasli͡edstvennosti i uspi͡eshnosti v shkolʹnykh zani͡atīi͡akh
Subjects: Child development, Youth development, Heredity, Academic achievement