France (2) Paris (2) Local transit (2) Movements (2) Mobilité (2) Métro (2) Mouvements (2) Transports publics (2) Paris (2) France (2) History (1) Archives (1) Archives (1) World War, 1939-1945 (1) Walking (1) Urban transportation (1) Time (1) Souterrains (1) Sociologists (1) Social history (1) Scientists (1) Possibility (1) Orphanages (1) Old age homes (1) Local government (1) Library materials (1) Land tenure (1) Historians (1) Gaze (1) Gait in humans (1)