Gurusinga, M. A., T. Ohba, A. Harijoko, and T. Hoshide. “Characteristics of Ash Particles from the Maar Complex of Lamongan Volcanic Field (LVF), East Java, Indonesia: How Textural Features and Magma Composition Control Ash Morphology”. Volcanica, vol. 6, no. 2, Nov. 2023, pp. 415-36, doi:10.30909/vol.06.02.415436.