References
- Bojlén K., Rasch G., Weis-Bentzon M. The age incidence of the menarche in Copenhagen. Acta Obstetrica et Gynecologica Scandinavica 1954; 33: 405–433
- Brucefors A. SLU-projektet 1964–1971. (The SLU-project 1964–1971) En kortfattad översikt över Skolöverstyrelsens och Lärarhögskolans studie av utvecklingsförloppet hos växande (9–16 ar). Report No. 66. Department of Educational Research, School of Education, Stockholm 1972
- Damon A., Bajema C.J. Age at menarche. Accuracy of recall after thirty-nine years. Human Biology 1974; 46: 381–384
- Damon A., Damon S.T., Reed R.B., Valadian I. Age at menarche of mothers and daughters with a note on accuracy of recall. Human Biology 1969; 41: 161–175
- Livson N., McNeill D. The accuracy of recalled menarche. Human Biology 1962; 34: 218–221
- Tanner J.M. The secular trend towards earlier physical maturation. Tijdschrift voor Sociale Geneeskunde 1966; 44: 524–539