?url_ver=Z39.88-2004&rft_id=10.1088%2F1757-899X%2F453%2F1%2F012042&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=S.&rft.aulast=Alva&rft.au=Alva%2C+S.&rft.date=2018&rft.issn=17578981&rft.title=Development+of+Ammonium-Selective+Electrode+Based+on+PVC%2FMB28+Membrane&rft.genre=proceeding