Choulis, S, Hosea, T, Tomic, S, Kamal-Saadi, M, Adams, A, O’Reilly, E, Weinstein, B, Klar, P, "Electronic structure of InyGa1-yAs1-xNx/GaAs multiple quantum wells in the dilute-N regime from pressure and k⋅p studies", Physical Review B, 2002