Stratifiable Spaces as Subspaces and Continuous Images of M 1 -Spaces
Robert W. Heath, Heikki J. K. Junnila · Proceedings of the American Mathematical Society · 1981
Robert W. Heath, Heikki J. K. Junnila, Stratifiable Spaces as Subspaces and Continuous Images of $M_1$-Spaces, Proceedings of the American Mathematical Society, Vol. 83, No. 1 (Sep., 1981), pp. 146-148