43 years old girl, phd student looking for room in Barcelona City for three months.

I´m looking for a quiet and bright flat in Barcelona with people of my age, respectful, clean, responsable. Preferably located at Eixample, Poble Sec, Plaza España, Gracia. Interior or exterior room, furnished, bright. If possible few people in the flat, right now I need concentration and peace, because I´m writing my dissertation on education, is the reason I´m going to Barcelona. I don´t have problems if you like to smoke or have pets. I like animals.