selecte related per ridurre il numero di query
selecte related per ridurre il numero di query

pythonitalia/conference,malemburg/epcon,PythonSanSebastian/conference,malemburg/epcon,PythonSanSebastian/conference,EuroPython/epcon,artcz/epcon,PythonSanSebastian/epcon,matrixise/epcon,matrixise/epcon,barrachri/epcon,yakky/conference,EuroPython/epcon,EuroPython/epcon,PythonSanSebastian/epcon,artcz/epcon,barrachri/epcon,yakky/conference,PythonSanSebastian/epcon,artcz/epcon,malemburg/epcon,PythonSanSebastian/epcon,pythonitalia/conference,malemburg/epcon,malemburg/epcon,barrachri/epcon,PythonSanSebastian/epcon,barrachri/epcon,pythonitalia/conference,matrixise/epcon,PythonSanSebastian/epcon,matrixise/epcon,PythonSanSebastian/conference,barrachri/epcon,artcz/epcon,artcz/epcon,barrachri/epcon,EuroPython/epcon,malemburg/epcon,artcz/epcon,matrixise/epcon,matrixise/epcon