@article{EP_2014_46_a2,
     author = {Wolfgang F\"org-Rob},
     title = {The {Pilgerschritt} {(Liedl)} transform},
     journal = {ESAIM. Proceedings},
     pages = {14--22},
     publisher = {mathdoc},
     volume = {46},
     year = {2014},
     doi = {10.1051/proc/201446002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/proc/201446002/}
}