Govind Bhagvatpada was Guru (teacher) of Adi Shankaracharya who has preached Advaita (one of the most popular philosophy/doctrine of Vedanta). According to Advaita Guruparampara, he was Shisya (disciple) of Gaudapada.
Now, talking about works of Advaita Acharyas, the most popular work/contribution of Gaudapadacharya (grand guru of Adi Shankaracharya) is Karika on Mandukya Upanishad. Others are bhasya on Uttara Gita, Anu Gita, Vidya Ratna Sutra etc. Adi Shankracharya is well known for writing commentaries on Prasthanatrayi and numerous stotras are attributed to him.
But I have not come to know about works of Govinda Bhagvatpada. Are there any works attributed to him?