Academic article

• Øystein Håvard Færder; Nikolai Grigorievich Lehtinen; D. Sarria et al. (2026). Numerical Parameter‐Space Studies of Various Types of Thundercloud Gamma‐Ray Emissions. (external link)
• Ingrid Bjørge-Engeland; Nikolai Østgaard; Martino Marisaldi et al. (2024). High Peak Current Lightning and the Production of Elves. (external link)
• Anders Lindanger; Chris Alexander Kallevik Skeie; Martino Marisaldi et al. (2022). Production of Terrestrial Gamma-Ray Flashes During the Early Stages of Lightning Flashes. (external link)
• Chris Alexander Kallevik Skeie; Nikolai Østgaard; Andrey Mezentsev et al. (2022). The Temporal Relationship Between Terrestrial Gamma-Ray Flashes and Associated Optical Pulses From Lightning. (external link)
• Ingrid Bjørge-Engeland; Nikolai Østgaard; Andrey Mezentsev et al. (2022). Terrestrial Gamma-Ray Flashes With Accompanying Elves Detected by ASIM. (external link)
• Ingrid Bjørge-Engeland; Nikolai Østgaard; David Alexandre Stephan Sarria et al. (2024). Evidence of a New Population of Weak Terrestrial Gamma-Ray Flashes Observed From Aircraft Altitude. (external link)
• David Alexandre Stephan Sarria; Nikolai Østgaard; Ingrid Bjørge-Engeland et al. (2025). Spectral Analysis of Flickering Gamma-Ray Flashes Observed During the ALOFT 2023 Campaign. (external link)

Conference lecture

• Ingrid Bjørge-Engeland (2024). New Population of Weak TGFs Observed from Aircraft Altitude. (external link)

Conference poster

• Ingrid Bjørge-Engeland (2024). TGFs observed by the ALOFT 2023 flight campaign during an ISS overpass. (external link)
• Ingrid Bjørge-Engeland (2025). Investigating the termination mechanisms of gamma-ray glows observed during the ALOFT aircraft campaign. (external link)

Doctoral thesis (PhD)

• Ingrid Bjørge-Engeland (2024). The connection between lightning currents, TGF intensities and Elves. (external link)

See a complete overview of publications in Cristin.