1. Leewenhoeck A (1683) An abstract of a letter from Mr. Anthony Leevvenhoeck at Delft, dated Sep. 17. 1683. Containing some microscopical observations, about animals in the scurf of the teeth, the substance call’d worms in the nose, the cuticula consisting of scales. Philos Trans R Soc Lond 14
2. Hoiby N, Axelsen NH (1973) Identification and quantitation of precipitins against Pseudomonas aeruginosa in patients with cystic fibrosis by means of crossed immunoelectrophoresis with intermediate gel. Acta Pathol Microbiol Scand B: Microbiol Immunol 81:298–308
3. Neu TR, Lawrence JR (2009) Extracellular polymeric substances in microbial biofilms. In: Moran A, Holst O, Brennan P, von Itzstein M (eds) Microbial glycobiology: Structures, relevance and applications. Academic Press, Cambridge, pp 735–758
4. Stoodley P, Sauer K, Davies DG, Costerton JW (2002) Biofilms as complex differentiated communities. Annu Rev Microbiol 56:187–209
5. Moser C et al (2017) Biofilms and host response – helpful or harmful. APMIS 125:320–338