From: Rabbi Moshe Sofer
To: Unknown recipient
The Chasam Sofer rules that 'Eliya' without a vav is the primary spelling of the patronymic name in the get, supported by the consistent spelling in the Eliya Zuta and an acrostic poem. He rejects the Noda BiYehudah's bereirah concern regarding dual-get procedure, arguing bereirah is inapplicable at the writing stage, and prefers the Mahariv's rationale — that the divorcer's intent might attach to the invalid get — as the proper basis for procedural caution.
Source: Shu"t Chasam Sofer EH II §26