Frey M, Chomet P, Glawischnig E, Stettner C, Grün S, Winklmair A, Eisenreich W, Bacher A, Meeley RB, Briggs SP, Simcox K, Gierl A (August 1997). "Analysis of a chemical plant defense mechanism in grasses". Science. 277 (5326): 696–9. doi:10.1126/science.277.5326.696. PMID9235894.
Spiteller P, Glawischnig E, Gierl A, Steglich W (June 2001). "Studies on the biosynthesis of 2-hydroxy-1,4-benzoxazin-3-one (HBOA) from 3-hydroxyindolin-2-one in Zea mays". Phytochemistry. 57 (3): 373–6. Bibcode:2001PChem..57..373S. doi:10.1016/s0031-9422(01)00037-1. PMID11393516.
Spiteller P, Glawischnig E, Gierl A, Steglich W (June 2001). "Studies on the biosynthesis of 2-hydroxy-1,4-benzoxazin-3-one (HBOA) from 3-hydroxyindolin-2-one in Zea mays". Phytochemistry. 57 (3): 373–6. Bibcode:2001PChem..57..373S. doi:10.1016/s0031-9422(01)00037-1. PMID11393516.
Frey M, Chomet P, Glawischnig E, Stettner C, Grün S, Winklmair A, Eisenreich W, Bacher A, Meeley RB, Briggs SP, Simcox K, Gierl A (August 1997). "Analysis of a chemical plant defense mechanism in grasses". Science. 277 (5326): 696–9. doi:10.1126/science.277.5326.696. PMID9235894.
Spiteller P, Glawischnig E, Gierl A, Steglich W (June 2001). "Studies on the biosynthesis of 2-hydroxy-1,4-benzoxazin-3-one (HBOA) from 3-hydroxyindolin-2-one in Zea mays". Phytochemistry. 57 (3): 373–6. Bibcode:2001PChem..57..373S. doi:10.1016/s0031-9422(01)00037-1. PMID11393516.