Analysis of information sources in references of the Wikipedia article "Valery Legasov" in Indonesian language version.
[the official Soviet news agency] Tass said Legasov made a significant contribution in the working out and realization of immediate measures aimed at liquidating the consequences of the accident.
The official Tass news agency said Legasov died Wednesday, a day after the second anniversary of the April 26, 1986, explosion and fire
Soviet nuclear industry sources have said that domestic problems played a role, but the timing, 27 April, exactly two years after the Chernobyl accident, is clearly of major significance. His death was first officially announced on 29 April, but without any mention of the cause. Subsequently it emerged that he had taken his own life.
But he did not die of radiation sickness, even though he spent four months in Chernobyl after the explosion there. Legasov hanged himself in his office on April 27, 1988, almost two years to the day after the reactor accident in present-day Ukraine.