@InProceedings{buelow2013experimental,
	author = {Bülow, Henning and Lu, Xiaofeng and Schmalen, Laurent},
	title = {Experimental analysis of transmission and soft decoding of optimized 4D constellations},
	booktitle = {Asia Communications and Photonics Conference (ACP)},
	pages = {AF4C–1},
	address = {Beijing, China},
	month = Nov,
	year = {2013},
}