@article{10_4064_ap_25_1_23_38,
     author = {S. Walczak},
     title = {Extremal problems in the class of close-to-convex functions},
     journal = {Annales Polonici Mathematici},
     pages = {23--38},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1971},
     doi = {10.4064/ap-25-1-23-38},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-25-1-23-38/}
}