The halldorophone: The ongoing innovation of a cello-like drone instrument. - Halldór Úlfarsson (NIME, 2018)

Sculpting the behaviour of the Feedback-Actuated Augmented Bass: Design strategies for subtle manipulations of string feedback using simple adaptive algorithms. - Adam Pultz Melbye; Halldór Úlfarsson (NIME, 2020)

Self-resonating Vibrotactile Feedback Instruments textbar textbar: Making, Playing, Conceptualising : textbar textbar. - Alice Eldridge; Chris Kiefer; Dan Overholt; Halldór Úlfarsson (NIME, 2021)

The Proto-Langspil: Launching an Icelandic NIME Research Lab with the Help of a Marginalised Instrument. - Jack Armitage; Thor Magnusson; Victor Shepardson; Halldór Úlfarsson (NIME, 2022)

Reflexions upon Feedback. - Thor Magnusson; Chris Kiefer; Halldór Úlfarsson (NIME, 2022)

Ergodynamics of String Feedback. - Halldór Úlfarsson (NIME, 2023)

The Organium: A Library of Technical Elements for Improvisatory Design Thinking. - Thor Magnusson; Kit Braybrooke; Sophie Skach; Giacomo Lepri; Marco Donnarumma; Adam Pultz Melbye; Jack Armitage; Victor Shepardson; Nicola Privato; Miguel Angel Crozzoli; Halldór Úlfarsson; Sean Patrick O'Brien (Audio Mostly Conference, 2024)