Resumen de On the retrosection theorem
Rubén Antonio Hidalgo 
We survey some old and new results related to the retrosection theorem and some of its extensions to compact Klein surfaces, stable Riemann surfaces and stable Klein surfaces.
Rubén Antonio Hidalgo
We survey some old and new results related to the retrosection theorem and some of its extensions to compact Klein surfaces, stable Riemann surfaces and stable Klein surfaces.
