@book{22069,
	author = {Larkin, Ralph},
	title = {Comprehending Columbine},
	url = {https://library.oapen.org/bitstream/20.500.12657/31587/1/626973.pdf||https://library.oapen.org/bitstream/20.500.12657/31587/1/626973.pdf||https://library.oapen.org/bitstream/20.500.12657/31587/1/626973.pdf}
}