Bip39 copyright https://collinmmss433.lucialpiazzale.com/from-concept-to-fact-generating-bitcoin-addresses-with-bip39 Even though it uses BIP32 system you could continue to import BIP39 seeds into Electrum wallet. Also in addition to BIp32 There may be BIP44 Variation which some wallet use for your generation of seeds. This performs since BIP39 is supported by a lot of wallet brands. https://get-social-now.com/story6117971/bip39-bip32-new-step-by-step-map-for-bip39-word-list-txt-https-t-me-bip39-chat