Yǒurén xiě chéng Duōlā A Mèng, qíshí zhèngshì de xiěfǎ shì Duō lā A Mèng.
Some people write 多拉A梦, but the official form is 哆啦A梦.
Tips
usage
多拉A梦 is a common informal variant of the official 哆啦A梦. Both are pronounced Duōlā A Mèng and refer to the same character - the 2005 standardization settled on 哆啦, but search engines and fan sites still use 多拉 heavily.