@inproceedings{Grimm:2017UP, author = "Grimm, Stefan and Veberic, Darko and Engel, Ralph", title = "{Heitler-Matthews model with leading-particle effect}", doi = "10.22323/1.301.0299", booktitle = "Proceedings of 35th International Cosmic Ray Conference {\textemdash} PoS(ICRC2017)", year = 2017, volume = "301", pages = "299" }