Analysis of information sources in references of the Wikipedia article "Inariyama Sword" in English language version.
...保管していた位置を確定でいない錆の分析の結果, 中国山東省から揚子江沿岸の江南地方の含銅磁鉄鉱を精錬して作られた地金であり, 大陸から輸入して国内で鍛冶を行い剣とされたことが推定できた。 (... The results of analyzing rust for which the storage location could not be determined showed that the metal was from Shandong Province in China, made by smelting copper-bearing magnetite from the Jiangnan region along the banks of the Yangtze River, from which it was inferred that the metal was imported from the continent and then forged into a sword in-country [in Japan].)
...保管していた位置を確定でいない錆の分析の結果, 中国山東省から揚子江沿岸の江南地方の含銅磁鉄鉱を精錬して作られた地金であり, 大陸から輸入して国内で鍛冶を行い剣とされたことが推定できた。 (... The results of analyzing rust for which the storage location could not be determined showed that the metal was from Shandong Province in China, made by smelting copper-bearing magnetite from the Jiangnan region along the banks of the Yangtze River, from which it was inferred that the metal was imported from the continent and then forged into a sword in-country [in Japan].)
