Joensuun - Etelä-Saimaan nippuhinausväylän rakentamattomien avokanavien hyötyanalyysi : Analysis of the likely benefit from the as yet (1969) unconstructed open channels on the rafting route from the City of Joensuu (North Karelia, Finland) to the Southern Saimaa (Finland)
Joensuun - Etelä-Saimaan nippuhinausväylän rakentamattomien avokanavien hyötyanalyysi : Analysis of the likely benefit from the as yet (1969) unconstructed open channels on the rafting route from the City of Joensuu (North Karelia, Finland) to the Southern Saimaa (Finland)
Joensuun - Etelä-Saimaan nippuhinausväylän rakentamattomien avokanavien hyötyanalyysi : Analysis of the likely benefit from the as yet (1969) unconstructed open channels on the rafting route from the City of Joensuu (North Karelia, Finland) to the Southern Saimaa (Finland)
Joensuun - Etelä-Saimaan nippuhinausväylän rakentamattomien avokanavien hyötyanalyysi : Analysis of the likely benefit from the as yet (1969) unconstructed open channels on the rafting route from the City of Joensuu (North Karelia, Finland) to the Southern Saimaa (Finland)