Thaler, A., Cox, B. G., & Schneider, H. (2003). Stability constants of aza-oxa-crown ether complexes with silver(I) in nonaqueous polar solvents. Inorganica Chimica Acta, 351, 123-132. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TG5-48XCJSV-1-Y&_cdi=5245&_user=38661&_pii=S0020169303001932&_orig=search&_coverDate=07%2F22%2F2003&_sk=996489999&view=c&wchp=dGLbVtz-zSkWA&md5=6eabc9374a3a3721468aaa3790f6a411&ie=/sdarticle.pdf.