From the passage provided, list the partners with whom Martina Hingis won the doubles Grand Slam in 1998

Context: In 1998, Hingis won all four of the Grand Slam women's doubles titles, only the fourth in women's tennis history to do so,, and she became only the third woman to hold the No. 1 ranking in both singles and doubles simultaneously. She also retained her Australian Open singles title by beating Conchita Martínez in straight sets in the final. Hingis, however, lost in the final of the US Open to Lindsay Davenport. Davenport ended an 80-week stretch Hingis had enjoyed as the No. 1 singles player in October 1998, but Hingis finished the year by beating Davenport in the final of the WTA Tour Championships.

Answer: - Mirjana Lučić
- Jana Novotná