https://world-nuclear.org/information-library/safety-and-security/safety-of-plants/fukushima-daiichi-accident?_gl=1*e5ra7g*_ga*NDU1OTE3Nzc0LjE2ODEzOTM2MzE.*_ga_1CCM6YP0WF*MTY4NzI3MzExNC4zNDYuMS4xNjg3MjczMjg1LjAuMC4w
This information paper describes in detail the causes of the nuclear accident at Fukushima Daiichi in March 2011 and the actions taken since.
fukushima daiichi accidentworld nuclear association
https://www.irs.uni-hannover.de/en/research/publications/publications-details?tx_t3luhpublications_publications%5Baction%5D=show&tx_t3luhpublications_publications%5Bcontroller%5D=Publication&tx_t3luhpublications_publications%5Bpublication%5D=2550&cHash=b2526d289dd9224ea7003e505d103bfe
surface watersfukushima daiichiradionuclidesarounddamaged