Dover Publications · Forgotten Books
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| A Special Hill's Equation With Discontinuous Coefficients | 978-0-656-54024-2 (0-656-54024-9) | 2018 |
| The Functions of Mathematical Physics | 978-0-486-65214-6 (0-486-65214-9) | 2012 |