All-solid-state $Ag^{+}$-ISE based on [2.2.2]\emph {p,p,p}-cyclophane / Johan Bobacka, Tanja Lahtinen, Johanna Nordman, Sanna Häggström, Kari Rissanen, Andrzej LEWENSTAM, Ari Ivaska // Electroanalysis : an International Journal Devoted to Fundamental and Practical Aspects of Electroanalysis ; ISSN 1040-0397. — 2001 vol. 13 no. 8–9, s. 723–726. — Bibliogr. s. 726, Abstr.. — tekst: https://onlinelibrary-1wiley-1com-1r3ntz43c020c.wbg2.bg.agh.edu.pl/doi/epdf/10.1002/1521-4109%28200105%2913%3A8/9%3C723%3A%3AAID-ELAN723%3E3.0.CO%3B2-R

Application of Nernst-Planck and Poisson equations for interpretation of liquid-junction and membrane potentials in real-time and space domains / Tomasz Sokalski, Andrzej LEWENSTAM // Electrochemistry Communications ; ISSN 1388-2481. — 2001 vol. 3 iss. 3, s. 107–112. — Bibliogr. s. 112. — tekst: https://www-1sciencedirect-1com-10000270j0212.wbg2.bg.agh.edu.pl/science/article/pii/S1388248101001102/pdfft?md5=2c702ed85c4e1d258f896888bacef8ce&pid=1-s2.0-S1388248101001102-main.pdf

Determination of $Na^{+}$, $K^{+}$, $Ca^{2+}$, and $Cl^{-}$ ions in wood pulp suspension using ion-selective electrodes / Mercedes Vázquez, Konstantin Mikhelson, Sulo Piepponen, Jaakko Rämö, Mika Sillanpää, Ari Ivaska, Andrzej LEWENSTAM, Johan Bobacka // Electroanalysis : an International Journal Devoted to Fundamental and Practical Aspects of Electroanalysis ; ISSN 1040-0397. — 2001 vol. 13 no. 13, s. 1119–1124. — Bibliogr. s. 1124, Abstr.. — tekst: https://onlinelibrary-1wiley-1com-1r3ntz4w90166.wbg2.bg.agh.edu.pl/doi/epdf/10.1002/1521-4109%28200109%2913%3A13%3C1119%3A%3AAID-ELAN1119%3E3.0.CO%3B2-M

Equilibrium potential of potentiometric ion sensors under steady-state current by using current-reversal chronopotentiometry / Johan Bobacka, Andrzej LEWENSTAM, Ari Ivaska // Journal of Electroanalytical Chemistry ; ISSN 1572-6657. — 2001 vol. 509 iss. 1 spec. iss., s. 27–30. — Bibliogr. s. 30, Abstr.. — 51st Annual Meeting of the International-Society-of-Electrochemistry : WARSAW, SEP 03-08, 2000. — tekst: https://www-1sciencedirect-1com-1000027yv0197.wbg2.bg.agh.edu.pl/science/article/pii/S0022072800005155/pdfft?md5=945cfc59c45c6ae1205560aeb5d1a7db&pid=1-s2.0-S0022072800005155-main.pdf

Kalijselektivnye tverdokontaktnye elektrody na osnove elektronoprovodjaščich polimerov — [K$^{+}$-selective solid contact electrode] / N. N. Markuzina [et al.], A. LEWENSTAM // Žurnal Prikladnoj Chimii. — 2001 t. 74 vyp. 3, s. 409–412. — Bibliogr. s. 412

Kiinteäkontaktiset ionianturit – askel kohti älykkäitä kemiallisia antureita — [Solid-contact ion sensors] / Ari Ivaska, Tom Lindfors, Johan Bobacka, Andrzej LEWENSTAM // Kemia-Kemi ; ISSN 0355-1628. — 2001 vol. 28 no. 2, s. 90–93

Potentiometric performance and interfacial kinetics of neutral ionophore based ISE membranes in interfering ion solutions before and after contact with primary ions / Konstantin N. Mikhelson, Johan Bobacka, Andrzej LEWENSTAM, Ari Ivaska // Electroanalysis : an International Journal Devoted to Fundamental and Practical Aspects of Electroanalysis ; ISSN 1040-0397. — 2001 vol. 13 no. 10, s. 876–881. — Bibliogr. s. 881, Abstr.