Żądzińska, Elżbieta ; Domański, Czesław; Rosset, Iwona; Mikulec, Artur (Wydawnictwo Uniwersytetu Łódzkiego, 2012)
The research on the relations between economic stress and the value of secondary sex ratio
(SSR) was initiated by Trivers and Willard (1973). The seminal study in this field speculated that
smaller (than needed) consumption ...