Marja-Liisa Kirvesniemi (née Hämäläinen; born 10 September 1955) is a Finnish former cross-country skier.
 She was the big figure at the 1984 Olympics in Sarajevo, winning all three individual cross-country skiing events (5, 10 and 20 km), and a bronze medal for Finland in the relay.
 In the process, she became the most successful athlete at the 1984 Winter Olympics.
 At the 1988 Winter Olympics in Calgary, she won another relay bronze medal, and at the 1994 Winter Olympics in Lillehammer, she won two more bronze medals in the 5 and 30 km.
Freestyle skiing is one of the six skiing disciplines contested at the Winter Olympic Games, and one of the youngest.
 In 1924, the first Winter Olympics featured Nordic skiing disciplines (cross-country skiing, ski jumping, and Nordic combined), while alpine skiing was first contested in 1936.
 Only at the 1992 Winter Olympics, in Albertville, France, were freestyle skiing events first held as official medal events.
 Before that, freestyle skiing was contested at the 1988 Winter Olympics as a demonstration sport, consisting of events for both men and women in three variants: moguls, aerials and ski ballet.
 In Albertville, moguls was the first-ever official freestyle skiing medal event; aerials and ski ballet were also held but still as demonstration events.
 The growing popularity of aerials convinced the International Olympic Committee (IOC) to add this freestyle discipline to the 1994 Winter Olympics official program.
 Moguls and aerials have thus been contested at every Winter Games since.
 Ski cross inclusion in the Winter Olympics program was approved at an IOC Executive Board meeting in November 2006, and the first events were held at the 2010 Winter Olympics.
For the Winter Olympics, there are 22 venues that have been or will be used for cross-country skiing.
 The first events took near the main stadium.
 In 1936, the first efforts to hold all of Nordic skiing (Nordic combined, ski jumping) in one location took place.
 This was repeated in 1952.
 For the 1956 games, the venue was among the first in the Winter Olympics to meet the television needs of RAI, Italy's national broadcaster.
 The 1956 venue was constructed in an oblong 250 by area in an east-west direction with the Grand Stands facing south.
 A temporary venue was created for the 1960 Games which also included biathlon for the first time.
 The first permanent Olympic venue in cross-country skiing took place in 1980.
 For all of Nordic skiing and biathlon, the first time they were in the same location was at the 2010 Games.
The sport of cross-country skiing encompasses a variety of formats for cross-country skiing races over courses of varying lengths according to rules sanctioned by the International Ski Federation and by various national organizations, such as the U.S. Ski and Snowboard Association (USSA) and Cross Country Ski Canada.
 International competitions include the FIS Nordic World Ski Championships, the FIS Cross-Country World Cup, and at the Winter Olympic Games.
 Such races occur over homologated, groomed courses designed to support classic (in-track) and freestyle events, where the skiers may employ skate skiing.
 It also encompasses cross-country ski marathon events, sanctioned by the Worldloppet Ski Federation, and cross-country ski orienteering events, sanctioned by the International Orienteering Federation.
 Related forms of competition are biathlon, where competitors race on cross-country skis and stop to shoot at targets with rifles, and paralympic cross-country skiing that allows athletes with disabilities to compete at cross-country skiing with adaptive equipment.
The summer biathlon is a sporting event that combines running and rifle shooting.
 It is modeled after the biathlon, which is an Olympic sport that integrates rifle shooting with cross-country skiing.
 The Summer Biathlon World Championships have been held annually since 1996.
Milanko Petrović () (born September 21, 1988 in Sjenica) is a Serbian biathlete who participated at the 2010 Winter Olympics, becoming the first olympic biathlete for independent Serbia.
 At the 2014 Winter Olympics he carried Serbian flag at the opening ceremony and competed in biathlon and cross-country skiing.
 He represents Serbia at the Biathlon World Championships and he is a regular participant of the Biathlon World Cup and the first ever Serb to win World Cup points.
 Occasionally, he competes in cross-country skiing.
 At the 2013 Winter Universiade he made a remarkable success by winning first ever international medals for Serbia in biathlon and cross-country skiing.
The biathlon is a winter sport that combines cross-country skiing and rifle shooting.
Hans Anton Aalien (born 21 September 1958) is a blind skier from Norway.
 He won a gold medal in the disabled skiing at the 1988 Winter Olympics event in Calgary, Alberta, Canada with a time of 18 minutes, 52.2 seconds.
 He participated in track and field athletics at four consecutive Summer Paralympics, from 1976 to 1988, and also competed in swimming in 1976 and 1984.
 He won one bronze medal in athletics and a silver and a bronze in swimming.
 At the Winter Paralympics, he competed in cross-country skiing in 1980, 1984, and 1988, and medaled in every event he participated in.
 He won a total of seven golds, one silver, and one bronze winter Paralympic medal.
Biathlon refers to the winter sport that combines cross-country skiing and rifle shooting.
Charles Plamondon (born 4 May 1961) is a Canadian former biathlete who competed in the 1988 Winter Olympics.

Question: Charles Plamondon competed in the 1988 Winter Olympics for what sport that combines cross-country skiing and rifle shooting?
Answer: biathlon