WALKERJT, VERRANJ, BOYD RD, PERCIVAL S(2000),Microscopymethodsto investigate the structureof potablewaterbiofilms',MethEnz 333 , 243±255. WIRTANENG, MATILLA-SANDHOLMT(1994),Measurementof biofilmofPediococcus
pentosaceusandPseudomonasfragion stainlesssteelsurfaces',ColloidsSurfB:
Biointerfaces 2 , 33±39.
WIRTANENG, STORGARDS E, SAARELA M, SALOS, MATILLA-SANDHOLMT(2000),`Detection
of biofilmsin the foodand beverageindustry',in WalkerJT, SurmanS, Jass J,
IndustrialBiofouling,Chichester,JohnWileyand SonsLtd, 176±203.
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