PLACHÝ, Jan, Vít PETRÁNEK, Karel ŠUHAJDA, Jana VYSOKÁ, Tomáš PETŘÍČEK, Petra BEDNÁŘOVÁ and
Karim SIDIBE. Bulk Density of Bitumen Sheets. In
ICMSE 2013 : Advanced Materials Research ICMSE 2013. Switzerland: Trans Tech Publications, 2013, p. 970-973. ISBN 978-3-03785-724-3. Available from: https://dx.doi.org/10.4028/www.scientific.net/AMR.712-715.970.