Secretly, they continued researching and developing weapons illegal according to the treaty.

He continued researching, painting and writing about historical flags at his home following his retirement from the Army.

Senate members voted on December 5, 2005 to continue researching the matter.

A small crew stays on the surface overnight to continue researching the planet.

In order to continue researching and analyzing folklore, intellectuals needed to justify its worth to the Communist regime.

He continued researching as an emeritus professor until 1999.

Though officially retiring in 1952 he continued researching for the next twenty years, concentrating on problems that could be attacked using simple equipment.

He continued actively researching and publishing mathematics for many years after retirement.

He taught the piano and the harpsichord and continued researching.

Today, scientists around the world continue researching the newest sustainable replacements for conventional plastic.