Extremes of apparent and tap densities of recovered GFRP filler materialsKers, Jaan; Majak, Jüri; Goljandin, Dmitri; Gregor, Andre; Malmstein, M.; Vilsaar, KristiinaComposite structures2010 / 9, p. 2097-2101 : ill Extremes of apparent and tap densities of recovered GFRP filler materialsKers, Jaan; Majak, Jüri; Gregor, Andre; Malmstein, M.; Vilsaar, Kristiina15th International Conference on Composite Structures : Portugal, Porto2009 / ? p https://www.sciencedirect.com/science/article/pii/S0263822309004085