Estimates of single-leaf radii in some function classes

References

1. Goluzin G. M. Geometric theory of functions of a complex variable. Nauka, 1966.
2. Iliev L. Application of one theorem of G. M. Goluzin on one-leaf functions. RAS USSR, vol. 19, No. 4, 1949.
3. Iliev L. On finite sums of one-leaf functions. RAS USSR, vol. 70, No. 1, 1950.
4. Iliev L. Theorems on thrice symmetric one-leaf functions. DAN USSR, vol. 84, No. 1, 1952.
5. Heiman V. K. Multileaf functions. FL, 1960.
6. Reade M. J. Math, of Japan, 1963.