1. Acceleration of the physical development of children and adolescents in the city of Poznan in the years 1880-1990;Krawczynski;Pediatr Pol,1995
2. The comparison of physical development in children from the city of Rabka in the years 1965, 1972 and 1977;Haluszka;Przeg Antropol,1981
3. Acceleration of the physical development of children and adolescents in the city of Poznan in the years 1880-1980;Krawczynski;Pediatr Pol,1989
4. Secular increase in height. Is the end in sight;Bakwin;Lancet,1964