TY - SER AU - Cotman,Magda AU - Pintar,Albin TI - Proficiency testing of wastewater sampling : What did we learn? KW - PROFICIENCY TESTING KW - IF N1 - YI2016 M06 ISSN - 0949-1775 Sources - Accreditation and Quality Assurance Sources - 20 (5) 2015 : 387-394 ER -