1 a₂ 1 a−∞ 1 a−∞(d) 1 affect 1800 b - B%C3%A8sties%20urbanes%20/ 1 b(x)y^3 4 b) 1 b+c→j/ψd+s 1 b+c→j/ψd∗+s 5 b-