Introduction GUERRA, Paula; MOREIRA, Tânia, “Introduction”, in GUERRA, Paula; MOREIRA, Tânia, Keep it Simple, Make it Fast! An approach to underground music scenes (vol. 1), Porto, Universidade do Porto – Faculdade de Letras, pp. 11-14. Paula Guerra Publication Year of Publication: 2015 Guerra, P. (2015). Introduction. Em . Google ScholarBibTeXRIS