no. 1
The nonlinear superposition operator acting on Bergman spaces
Compositio Mathematica, Tome 93 (1994) no. 1, pp. 23-35. 
@article{CM_1994__93_1_23_0,
     author = {Camera, G. A. and Gimenez, J.},
     title = {The nonlinear superposition operator acting on {Bergman} spaces},
     journal = {Compositio Mathematica},
     pages = {23--35},
     publisher = {Kluwer Academic Publishers},
     volume = {93},
     number = {1},
     year = {1994},
     mrnumber = {1286796},
     zbl = {0806.47060},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1994__93_1_23_0/}
}
TY  - JOUR
AU  - Camera, G. A.
AU  - Gimenez, J.
TI  - The nonlinear superposition operator acting on Bergman spaces
JO  - Compositio Mathematica
PY  - 1994
SP  - 23
EP  - 35
VL  - 93
IS  - 1
PB  - Kluwer Academic Publishers
UR  - http://archive.numdam.org/item/CM_1994__93_1_23_0/
LA  - en
ID  - CM_1994__93_1_23_0
ER  - 
%0 Journal Article
%A Camera, G. A.
%A Gimenez, J.
%T The nonlinear superposition operator acting on Bergman spaces
%J Compositio Mathematica
%D 1994
%P 23-35
%V 93
%N 1
%I Kluwer Academic Publishers
%U http://archive.numdam.org/item/CM_1994__93_1_23_0/
%G en
%F CM_1994__93_1_23_0
Camera, G. A.; Gimenez, J. The nonlinear superposition operator acting on Bergman spaces. Compositio Mathematica, Tome 93 (1994) no. 1, pp. 23-35. http://archive.numdam.org/item/CM_1994__93_1_23_0/

1 Appel, J., Zabrejko, P.P.: Nonlinear Superposition Operators. Cambridge University Press, 1990. | MR | Zbl

2 Cámera, G.A.: The autonomous nonlinear superposition operator in Hp (to appear).

3 Cámera, G.A.: On entire functions acting via nonlinear superposition on Nevanlinna functions (to appear). | MR

4 Duren, P.: Theory of Hp Spaces. Academic Press, New York, 1970. | MR | Zbl

5 Hardy, G.H. and Littlewood, J.E.: Some properties of fractional integrals. II. Math. Z. 34 (1932) 403-439. | JFM | MR | Zbl

6 Krasnosel'Skij, M.A.: On the continuity of the operator Fu(x) = f(x, u(x)) (Russian). Doklady Akad. Nauk SSSR 77(2) (1951) 185-188. | MR | Zbl

7 Marcus, M. and Mizel, V.J.: Every superposition operator mapping one Sobolev space into another is continuous. J. Funct. Anal. 33 (1979) 217-229. | MR | Zbl