https://www.epo.org/fr/boards-of-appeal/decisions/t880238ex1
T 0238/88 (Crown ether) du 25.04.1991
crown ether023888du25
https://www.epo.org/de/boards-of-appeal/decisions/t880238ex1
T 0238/88 (Crown ether) vom 25.04.1991
crown ether023888vom25
https://www.asiaone.com/money/cryptoverse-ether-snaps-bitcoins-heels-race-crypto-crown
Cryptoverse: Ether snaps at bitcoin's heels in race for crypto crown, Money News - AsiaOne
Sep 14, 2022 - For years, ether could barely dream of challenging its big brother bitcoin. Now, its ambitions may be becoming more realistic. The second-biggest...
https://www.mdpi.com/1420-3049/28/3/935
Study of Lithium-Extraction Systems Based on Benzo-15-Crown-5 Ether and Alkylimidazolium-Based...
The extraction of lithium from aqueous solutions of LiNTf2 and LiCl salts using benzo-15-crown-5 ether (B15C5) as an extractant in [C8mim][NTf2] ionic liquid...