Mirage News “Research reveals tactile impressions add product value”
https://www.miragenews.com/research-reveals-tactile-impressions-add-862014/

Original Paper (Open Access)

Kadoya, Y., Khan, M.S.R., Watanapongvanich, S., Fukuda, M., Kurita, Y., Takahashi, M., Machida, H., Yarimizu, K., Kimura, N., Sakurai, H., & Ebara, R. Consumers’ Willingness to Pay for Tactile Impressions: A Study Using Smartphone Covers, IEEE Access, 2022, 10, 85180- 85188