Daniel Sitaru born on 9August 1963 in Craiova, Romania, is a teacher at National Economic college тАЬTheodor CostescuтАЭ in Drobeta Turnu - Severin- Romania. He published over 50 Mathematical books, last seven of theseтАЭMath Phenomenon тАЬ, тАЬAlgebraic PhenomenonтАЭ, тАЬ Analytical PhenomenonтАЭ , тАЬThe Olympic Mathematical MarathonтАЭ, тАЬ699 Olympic Mathematical ChallengesтАЭ, тАЬOlympic Mathematical EnergyтАЭ, тАЬCalculus MarathonтАЭ were very appreciated world wide. He is the founding editor of тАЬRomanian Mathematical MagazineтАЭ, an Interactive Mathematical Journal with 5,000,000 visitors in the last five years(www.ssmrmh.ro). Many problems from his books were published in famous journals such asтАЭAmerican Mathematical MonthlyтАЭ, тАЬCrux MathematicorumтАЭ, тАЬMath Problems JournalтАЭ, тАЬThe Pentagon JournalтАЭ, тАЬLa Gaceta de la RSMEтАЭ, тАЬSSMA MagazineтАЭ. He also published an impressive number of original Problems in all mathematical journals from Romania (GMB, Cardinal, Elipsa, Argument, Recreatii Matematice). His articles from тАЬCrux MathematicorumтАЭ - Canada and тАЬThe Pentagon JournalтАЭ- USA were also very appreciated.
Rajeev Rastogi is a renowned mentor in India to guide students for Mathematical Olympiads(Pre RMO, RMO, INMO) & IIT-JEE, KVPY, ISI.He is rendering his services to boost students for above competitions from last 21 years in top institutes of Kota-India. He has participated in the success story of numerous competitive students who have taken part in both National and International competitions. He has proposed many problems in popular magazine RMM( Romanian Mathematical Magazine). He has completely devoted himself to uplift the Mathematical talents in the society.