Primitive operators of deficiency.
Hamburger, H. L.
Primitive operators of deficiency. - [1st ed.] - Chicago: Univ. of Chicago, 1956. - 59 p.
515.724 / H199p
Primitive operators of deficiency. - [1st ed.] - Chicago: Univ. of Chicago, 1956. - 59 p.
515.724 / H199p