Cingöz, Arman; Yost, Dylan C.; Allison, Thomas K.; Ruehl, Axel; Fermann, Martin E.; Hartl, Ingmar; Ye, Jun (2 February 2012), "Direct frequency comb spectroscopy in the extreme ultraviolet", Nature, 482 (7383): 68–71, arXiv:1109.1871, Bibcode:2012Natur.482...68C, doi:10.1038/nature10711, PMID22297971
Gohle, Christoph; Udem, Thomas; Herrmann, Maximilian; Rauschenberger, Jens; Holzwarth, Ronald; Schuessler, Hans A.; Krausz, Ferenc; Hänsch, Theodor W. (2005), "A frequency comb in the extreme ultraviolet", Nature, 436 (14 July 2005): 234–237, Bibcode:2005Natur.436..234G, doi:10.1038/nature03851, PMID16015324
Cingöz, Arman; Yost, Dylan C.; Allison, Thomas K.; Ruehl, Axel; Fermann, Martin E.; Hartl, Ingmar; Ye, Jun (2 February 2012), "Direct frequency comb spectroscopy in the extreme ultraviolet", Nature, 482 (7383): 68–71, arXiv:1109.1871, Bibcode:2012Natur.482...68C, doi:10.1038/nature10711, PMID22297971
Gohle, Christoph; Udem, Thomas; Herrmann, Maximilian; Rauschenberger, Jens; Holzwarth, Ronald; Schuessler, Hans A.; Krausz, Ferenc; Hänsch, Theodor W. (2005), "A frequency comb in the extreme ultraviolet", Nature, 436 (14 July 2005): 234–237, Bibcode:2005Natur.436..234G, doi:10.1038/nature03851, PMID16015324
Cingöz, Arman; Yost, Dylan C.; Allison, Thomas K.; Ruehl, Axel; Fermann, Martin E.; Hartl, Ingmar; Ye, Jun (2 February 2012), "Direct frequency comb spectroscopy in the extreme ultraviolet", Nature, 482 (7383): 68–71, arXiv:1109.1871, Bibcode:2012Natur.482...68C, doi:10.1038/nature10711, PMID22297971
Gohle, Christoph; Udem, Thomas; Herrmann, Maximilian; Rauschenberger, Jens; Holzwarth, Ronald; Schuessler, Hans A.; Krausz, Ferenc; Hänsch, Theodor W. (2005), "A frequency comb in the extreme ultraviolet", Nature, 436 (14 July 2005): 234–237, Bibcode:2005Natur.436..234G, doi:10.1038/nature03851, PMID16015324
Cingöz, Arman; Yost, Dylan C.; Allison, Thomas K.; Ruehl, Axel; Fermann, Martin E.; Hartl, Ingmar; Ye, Jun (2 February 2012), "Direct frequency comb spectroscopy in the extreme ultraviolet", Nature, 482 (7383): 68–71, arXiv:1109.1871, Bibcode:2012Natur.482...68C, doi:10.1038/nature10711, PMID22297971