1. Animal signals;Harper,2003
2. The logic of analog signaling and the theory of signal selection;Zahavi;Isr J Ecol Evol,2012
3. The handicap principle: a missing piece of Darwin’s puzzle;Zahavi,1997
4. The information encoded by the sex steroid hormones testosterone and estrogen: a hypothesis;Zahavi;J Theor Biol,2011
5. The information provided by the adrenal cortical steroids: a hypothesis;Weiss;J Theor Biol,2012