People Luxembourg Guy Colling peoplepill id: guy-collingGC 10 views today 10 views this weekGuy CollingBiographyListsAlso ViewedSimilar peoplePeople also viewedTom BattinLuxembourgish biologistPaul DiederichLichenologist and mycologistCarlo BackPhysicien et homme politique luxembourgeoisThierry HelmingerFrom our partnersSponsoredGuy Colling