A flexible functional form for S-curve
| Year of publication: |
1981
|
|---|---|
| Authors: | Raj, Baldev ; Keller, Gerald |
| Published in: |
Economics Letters. - Elsevier, ISSN 0165-1765. - Vol. 7.1981, 3, p. 237-241
|
| Publisher: |
Elsevier |