Effect of culture conditions and substrates on exopolysaccharide production by acid and bile salt tolerant lactic acid bacteria / D. Thapa, Z. Hao. Pediatria. International probiotic conference : probiotics for the 3rd millennium : june 4th-7th 2008 Hotel Bellevue High Tatras Slovakia Roč. 3, č. S3, suplement - abstrakty (2008), s. 54 S