It means your teacher want to know were you got your information from
Luminescent means capable of exhibiting luminescence. It also means emitting light not caused by heat. Here are some synonyms: glowing<span>, </span>shining<span>, </span>fluorescent<span>, </span>radiant<span>, </span>luminous<span>,</span><span> </span>phosphorescent<span>, </span><span>effulgent.</span>
Edmund Husserl (1859—1938) was an influential thinker of the first half of the twentieth century. His philosophy was heavily influenced by the works of Franz Brentano and Bernard Bolzano, and was also influenced in various ways by interaction with contemporaries such as Alexius Meinong, Kasimir Twardowski, and Gottlob Frege.