After him between 1954 and 1959 two other researchers made some systematical researches. Normal accents re-occur regularly providing systematical grouping (measures). He was one of the first people to make systematical astronomical observations in Finland. Articles concerning this topic are present but they lack a systematical regulation. Kutai Martadipura during Kudungga rule do not have a regular and systematical system of governance. As such, fishing of it is not systematical.