I have only seen one formal study into this question of green jobs.
She did not began her formal musical studies until the age of 12.
On his return to India in 1917 after seven years, he decided to continue formal studies.
Formal study there started in the academic year of 1980/1981.
But the formal studies did not include a simple blood pressure measurement.
He left school in 1955 and did not pursue additional formal study.
At the age of 16 he was forced to abandon his formal studies.
But the pictures have little to offer as either formal studies or investigations of television technology.
By the age of 19, he completed his formal Islamic studies.
They say more formal studies are pending, including research by the Israeli military.