[[1] DECKÝ, M. - DRUSA, M., et al.: Designing and control of quality of earth works of engineering structures (In Slovak). Žilina: BTO Print, 2009, ISBN 978-80-970139-1-2.]Search in Google Scholar
[[2] GeoGauge™ User Guide. Humboldt Mfg. Co., 2007.]Search in Google Scholar
[[3] CLEGG, B.: Clegg Impact Soil Tester Technical Note. Calculation of Penetration and Elastic Modulus from CIV. Jolimont, 1994.]Search in Google Scholar
[[4] STN 72 1001:2010: Classification of soil and rock.]Search in Google Scholar
[[5] STN EN ISO 14688-2: Geotechnical investigation and testing. Identification and classification of soil. Part 2: Principles for a classification.]Search in Google Scholar
[[6] DRUSA, M.: Improvement in evaluation of neogenous soils by CPT testing. Proceeding of 12th international multidisciplinary scientific geoconference. 17-23, June 2012, Albena, Bulgaria. Sofia: STEF92 Technology, 2012, p. 151-158, ISSN 1314-2704.]Search in Google Scholar
[[7] DECKÝ, M. - DRUSA, M. - PEPUCHA, Ľ. - ZGÚTOVÁ, K.: Earth Structures of Transport Constructions. Pearson Education Limited 2013, Edinburg Gate, Harlow, Essex CM20 2JE, p. 180, ISBN 978-1-78399-925-5.]Search in Google Scholar
