Malyshev S. I., 1946: O vybore materiala dlja izuèenija instinkta. 8 pp.
 
80484
Märss T., 1997: Vertebrates of the Pridoli and Silurian-Devonian boundary beds in Europe. 25 pp.
 
EJE 99143
Masaki S., 2002: Ecophysiological consequences of variability in diapause intensity. 12 pp. European Journal of Entomology 99(2): 143-154.
 
SPX 31001
Melzer R. R., Schmidt S., 2008: Editorial – From character observation to species delimitation – Taxonomy as empirical science. 1 pp. Spixiana 31(1): 1.
 
95961
Meyer-Abich A., 1958: Vom zweifachen Historischen Ursprung aller Morphologie. 18 pp. (in German).
 
95517
Müller K., Müller-Haeckel A., 1978: Faunistic reasearch in the river Ärgeran and in adjacent areas of the Bothian Bay. 17 pp. (in English). Fauna Norrlandica 3: 1-17.